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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [IA64] memmap: copy dom_fw.c to dom_fw_common.c
# HG changeset patch
# User Alex Williamson <alex.williamson@xxxxxx>
# Date 1179774961 21600
# Node ID 35530f81e638557f33e3403b2fe28c28f358905b
# Parent 8fb8d50272d22a2a3944e1696149a1902393c836
[IA64] memmap: copy dom_fw.c to dom_fw_common.c
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
xen/arch/ia64/xen/dom_fw_common.c | 1233 ++++++++++++++++++++++++++++++++++++++
1 files changed, 1233 insertions(+)
diff -r 8fb8d50272d2 -r 35530f81e638 xen/arch/ia64/xen/dom_fw_common.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/arch/ia64/xen/dom_fw_common.c Mon May 21 13:16:01 2007 -0600
@@ -0,0 +1,1233 @@
+/*
+ * Xen domain firmware emulation support
+ * Copyright (C) 2004 Hewlett-Packard Co.
+ * Dan Magenheimer (dan.magenheimer@xxxxxx)
+ *
+ * Copyright (c) 2006, 2007
+ * Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ * dom0 vp model support
+ */
+
+#include <xen/config.h>
+#include <asm/system.h>
+#include <asm/pgalloc.h>
+
+#include <linux/efi.h>
+#include <linux/sort.h>
+#include <asm/io.h>
+#include <asm/pal.h>
+#include <asm/sal.h>
+#include <asm/meminit.h>
+#include <asm/fpswa.h>
+#include <xen/version.h>
+#include <xen/acpi.h>
+#include <xen/errno.h>
+
+#include <asm/dom_fw.h>
+#include <asm/bundle.h>
+
+#define ONE_MB (1UL << 20)
+
+extern unsigned long running_on_sim;
+
+#define FW_VENDOR
"X\0e\0n\0/\0i\0a\0\066\0\064\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
+
+#define MAKE_MD(typ, attr, start, end)
\
+ do { \
+ md = tables->efi_memmap + i++; \
+ md->type = typ; \
+ md->pad = 0; \
+ md->phys_addr = start; \
+ md->virt_addr = 0; \
+ md->num_pages = (end - start) >> EFI_PAGE_SHIFT; \
+ md->attribute = attr; \
+ } while (0)
+
+#define EFI_HYPERCALL_PATCH(tgt, call) \
+ do { \
+ dom_efi_hypercall_patch(brkimm, \
+ FW_HYPERCALL_##call##_PADDR, \
+ FW_HYPERCALL_##call, hypercalls_imva); \
+ /* Descriptor address. */ \
+ tables->efi_runtime.tgt = \
+ FW_FIELD_MPA(func_ptrs) + 8 * pfn; \
+ /* Descriptor. */ \
+ tables->func_ptrs[pfn++] = FW_HYPERCALL_##call##_PADDR; \
+ tables->func_ptrs[pfn++] = 0; \
+ } while (0)
+
+/* allocate a page for fw
+ * guest_setup() @ libxc/xc_linux_build.c does for domU
+ */
+static inline void
+assign_new_domain_page_if_dom0(struct domain *d, unsigned long mpaddr)
+{
+ if (d == dom0)
+ assign_new_domain0_page(d, mpaddr);
+}
+
+/**************************************************************************
+Hypercall bundle creation
+**************************************************************************/
+
+static void
+build_hypercall_bundle(u64 *imva, u64 brkimm, u64 hypnum, u64 ret)
+{
+ INST64_A5 slot0;
+ INST64_I19 slot1;
+ INST64_B4 slot2;
+ IA64_BUNDLE bundle;
+
+ // slot1: mov r2 = hypnum (low 20 bits)
+ slot0.inst = 0;
+ slot0.qp = 0; slot0.r1 = 2; slot0.r3 = 0; slot0.major = 0x9;
+ slot0.imm7b = hypnum; slot0.imm9d = hypnum >> 7;
+ slot0.imm5c = hypnum >> 16; slot0.s = 0;
+ // slot1: break brkimm
+ slot1.inst = 0;
+ slot1.qp = 0; slot1.x6 = 0; slot1.x3 = 0; slot1.major = 0x0;
+ slot1.imm20 = brkimm; slot1.i = brkimm >> 20;
+ // if ret slot2: br.ret.sptk.many rp
+ // else slot2: br.cond.sptk.many rp
+ slot2.inst = 0; slot2.qp = 0; slot2.p = 1; slot2.b2 = 0;
+ slot2.wh = 0; slot2.d = 0; slot2.major = 0x0;
+ if (ret) {
+ slot2.btype = 4; slot2.x6 = 0x21;
+ }
+ else {
+ slot2.btype = 0; slot2.x6 = 0x20;
+ }
+
+ bundle.i64[0] = 0; bundle.i64[1] = 0;
+ bundle.template = 0x11;
+ bundle.slot0 = slot0.inst; bundle.slot2 = slot2.inst;
+ bundle.slot1a = slot1.inst; bundle.slot1b = slot1.inst >> 18;
+
+ imva[0] = bundle.i64[0]; imva[1] = bundle.i64[1];
+ ia64_fc(imva);
+ ia64_fc(imva + 1);
+}
+
+static void
+build_pal_hypercall_bundles(u64 *imva, u64 brkimm, u64 hypnum)
+{
+ extern unsigned long pal_call_stub[];
+ IA64_BUNDLE bundle;
+ INST64_A5 slot_a5;
+ INST64_M37 slot_m37;
+
+ /* The source of the hypercall stub is the pal_call_stub function
+ defined in xenasm.S. */
+
+ /* Copy the first bundle and patch the hypercall number. */
+ bundle.i64[0] = pal_call_stub[0];
+ bundle.i64[1] = pal_call_stub[1];
+ slot_a5.inst = bundle.slot0;
+ slot_a5.imm7b = hypnum;
+ slot_a5.imm9d = hypnum >> 7;
+ slot_a5.imm5c = hypnum >> 16;
+ bundle.slot0 = slot_a5.inst;
+ imva[0] = bundle.i64[0];
+ imva[1] = bundle.i64[1];
+ ia64_fc(imva);
+ ia64_fc(imva + 1);
+
+ /* Copy the second bundle and patch the hypercall vector. */
+ bundle.i64[0] = pal_call_stub[2];
+ bundle.i64[1] = pal_call_stub[3];
+ slot_m37.inst = bundle.slot0;
+ slot_m37.imm20a = brkimm;
+ slot_m37.i = brkimm >> 20;
+ bundle.slot0 = slot_m37.inst;
+ imva[2] = bundle.i64[0];
+ imva[3] = bundle.i64[1];
+ ia64_fc(imva + 2);
+ ia64_fc(imva + 3);
+}
+
+// builds a hypercall bundle at domain physical address
+static void
+dom_fpswa_hypercall_patch(u64 brkimm, unsigned long imva)
+{
+ unsigned long *entry_imva, *patch_imva;
+ const unsigned long entry_paddr = FW_HYPERCALL_FPSWA_ENTRY_PADDR;
+ const unsigned long patch_paddr = FW_HYPERCALL_FPSWA_PATCH_PADDR;
+
+ entry_imva = (unsigned long *)(imva + entry_paddr -
+ FW_HYPERCALL_BASE_PADDR);
+ patch_imva = (unsigned long *)(imva + patch_paddr -
+ FW_HYPERCALL_BASE_PADDR);
+
+ /* Descriptor. */
+ *entry_imva++ = patch_paddr;
+ *entry_imva = 0;
+
+ build_hypercall_bundle(patch_imva, brkimm, FW_HYPERCALL_FPSWA, 1);
+}
+
+// builds a hypercall bundle at domain physical address
+static void
+dom_efi_hypercall_patch(u64 brkimm, unsigned long paddr,
+ unsigned long hypercall, unsigned long imva)
+{
+ build_hypercall_bundle((u64 *)(imva + paddr - FW_HYPERCALL_BASE_PADDR),
+ brkimm, hypercall, 1);
+}
+
+// builds a hypercall bundle at domain physical address
+static void
+dom_fw_hypercall_patch(u64 brkimm, unsigned long paddr,
+ unsigned long hypercall,unsigned long ret,
+ unsigned long imva)
+{
+ build_hypercall_bundle((u64 *)(imva + paddr - FW_HYPERCALL_BASE_PADDR),
+ brkimm, hypercall, ret);
+}
+
+static void
+dom_fw_pal_hypercall_patch(u64 brkimm, unsigned long paddr, unsigned long imva)
+{
+ build_pal_hypercall_bundles((u64*)(imva + paddr -
+ FW_HYPERCALL_BASE_PADDR),
+ brkimm, FW_HYPERCALL_PAL_CALL);
+}
+
+static inline void
+print_md(efi_memory_desc_t *md)
+{
+ u64 size;
+
+ printk(XENLOG_INFO "dom mem: type=%2u, attr=0x%016lx, "
+ "range=[0x%016lx-0x%016lx) ",
+ md->type, md->attribute, md->phys_addr,
+ md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT));
+
+ size = md->num_pages << EFI_PAGE_SHIFT;
+ if (size > ONE_MB)
+ printk("(%luMB)\n", size >> 20);
+ else
+ printk("(%luKB)\n", size >> 10);
+}
+
+static u32 lsapic_nbr;
+
+/* Modify lsapic table. Provides LPs. */
+static int
+acpi_update_lsapic (acpi_table_entry_header *header, const unsigned long end)
+{
+ struct acpi_table_lsapic *lsapic;
+ int enable;
+
+ lsapic = (struct acpi_table_lsapic *) header;
+ if (!lsapic)
+ return -EINVAL;
+
+ if (lsapic_nbr < MAX_VIRT_CPUS && dom0->vcpu[lsapic_nbr] != NULL)
+ enable = 1;
+ else
+ enable = 0;
+ if (lsapic->flags.enabled && enable) {
+ printk("enable lsapic entry: 0x%lx\n", (u64)lsapic);
+ lsapic->id = lsapic_nbr;
+ lsapic->eid = 0;
+ lsapic_nbr++;
+ } else if (lsapic->flags.enabled) {
+ printk("DISABLE lsapic entry: 0x%lx\n", (u64)lsapic);
+ lsapic->flags.enabled = 0;
+ lsapic->id = 0;
+ lsapic->eid = 0;
+ }
+ return 0;
+}
+
+static u8
+generate_acpi_checksum(void *tbl, unsigned long len)
+{
+ u8 *ptr, sum = 0;
+
+ for (ptr = tbl; len > 0 ; len--, ptr++)
+ sum += *ptr;
+
+ return 0 - sum;
+}
+
+static int __init
+acpi_patch_plat_int_src (
+ acpi_table_entry_header *header, const unsigned long end)
+{
+ struct acpi_table_plat_int_src *plintsrc;
+
+ plintsrc = (struct acpi_table_plat_int_src *)header;
+ if (!plintsrc)
+ return -EINVAL;
+
+ if (plintsrc->type == ACPI_INTERRUPT_CPEI) {
+ printk("ACPI_INTERRUPT_CPEI disabled for Domain0\n");
+ plintsrc->type = -1;
+ }
+ return 0;
+}
+
+static int
+acpi_update_madt_checksum (unsigned long phys_addr, unsigned long size)
+{
+ struct acpi_table_madt* acpi_madt;
+
+ if (!phys_addr || !size)
+ return -EINVAL;
+
+ acpi_madt = (struct acpi_table_madt *) __va(phys_addr);
+ acpi_madt->header.checksum = 0;
+ acpi_madt->header.checksum = generate_acpi_checksum(acpi_madt, size);
+
+ return 0;
+}
+
+/* base is physical address of acpi table */
+static void touch_acpi_table(void)
+{
+ lsapic_nbr = 0;
+ if (acpi_table_parse_madt(ACPI_MADT_LSAPIC, acpi_update_lsapic, 0) < 0)
+ printk("Error parsing MADT - no LAPIC entries\n");
+ if (acpi_table_parse_madt(ACPI_MADT_PLAT_INT_SRC,
+ acpi_patch_plat_int_src, 0) < 0)
+ printk("Error parsing MADT - no PLAT_INT_SRC entries\n");
+
+ acpi_table_parse(ACPI_APIC, acpi_update_madt_checksum);
+
+ return;
+}
+
+struct fake_acpi_tables {
+ struct acpi20_table_rsdp rsdp;
+ struct xsdt_descriptor_rev2 xsdt;
+ u64 madt_ptr;
+ struct fadt_descriptor_rev2 fadt;
+ struct facs_descriptor_rev2 facs;
+ struct acpi_table_header dsdt;
+ u8 aml[8 + 11 * MAX_VIRT_CPUS];
+ struct acpi_table_madt madt;
+ struct acpi_table_lsapic lsapic[MAX_VIRT_CPUS];
+ u8 pm1a_evt_blk[4];
+ u8 pm1a_cnt_blk[1];
+ u8 pm_tmr_blk[4];
+};
+#define ACPI_TABLE_MPA(field) \
+ FW_ACPI_BASE_PADDR + offsetof(struct fake_acpi_tables, field);
+
+/* Create enough of an ACPI structure to make the guest OS ACPI happy. */
+static void
+dom_fw_fake_acpi(struct domain *d, struct fake_acpi_tables *tables)
+{
+ struct acpi20_table_rsdp *rsdp = &tables->rsdp;
+ struct xsdt_descriptor_rev2 *xsdt = &tables->xsdt;
+ struct fadt_descriptor_rev2 *fadt = &tables->fadt;
+ struct facs_descriptor_rev2 *facs = &tables->facs;
+ struct acpi_table_header *dsdt = &tables->dsdt;
+ struct acpi_table_madt *madt = &tables->madt;
+ struct acpi_table_lsapic *lsapic = tables->lsapic;
+ int i;
+ int aml_len;
+ int nbr_cpus;
+
+ memset(tables, 0, sizeof(struct fake_acpi_tables));
+
+ /* setup XSDT (64bit version of RSDT) */
+ memcpy(xsdt->signature, XSDT_SIG, sizeof(xsdt->signature));
+ /* XSDT points to both the FADT and the MADT, so add one entry */
+ xsdt->length = sizeof(struct xsdt_descriptor_rev2) + sizeof(u64);
+ xsdt->revision = 1;
+ memcpy(xsdt->oem_id, "XEN", 3);
+ memcpy(xsdt->oem_table_id, "Xen/ia64", 8);
+ memcpy(xsdt->asl_compiler_id, "XEN", 3);
+ xsdt->asl_compiler_revision = (xen_major_version() << 16) |
+ xen_minor_version();
+
+ xsdt->table_offset_entry[0] = ACPI_TABLE_MPA(fadt);
+ tables->madt_ptr = ACPI_TABLE_MPA(madt);
+
+ xsdt->checksum = generate_acpi_checksum(xsdt, xsdt->length);
+
+ /* setup FADT */
+ memcpy(fadt->signature, FADT_SIG, sizeof(fadt->signature));
+ fadt->length = sizeof(struct fadt_descriptor_rev2);
+ fadt->revision = FADT2_REVISION_ID;
+ memcpy(fadt->oem_id, "XEN", 3);
+ memcpy(fadt->oem_table_id, "Xen/ia64", 8);
+ memcpy(fadt->asl_compiler_id, "XEN", 3);
+ fadt->asl_compiler_revision = (xen_major_version() << 16) |
+ xen_minor_version();
+
+ memcpy(facs->signature, FACS_SIG, sizeof(facs->signature));
+ facs->version = 1;
+ facs->length = sizeof(struct facs_descriptor_rev2);
+
+ fadt->xfirmware_ctrl = ACPI_TABLE_MPA(facs);
+ fadt->Xdsdt = ACPI_TABLE_MPA(dsdt);
+
+ /*
+ * All of the below FADT entries are filled it to prevent warnings
+ * from sanity checks in the ACPI CA. Emulate required ACPI hardware
+ * registers in system memory.
+ */
+ fadt->pm1_evt_len = 4;
+ fadt->xpm1a_evt_blk.address_space_id = ACPI_ADR_SPACE_SYSTEM_MEMORY;
+ fadt->xpm1a_evt_blk.register_bit_width = 8;
+ fadt->xpm1a_evt_blk.address = ACPI_TABLE_MPA(pm1a_evt_blk);
+ fadt->pm1_cnt_len = 1;
+ fadt->xpm1a_cnt_blk.address_space_id = ACPI_ADR_SPACE_SYSTEM_MEMORY;
+ fadt->xpm1a_cnt_blk.register_bit_width = 8;
+ fadt->xpm1a_cnt_blk.address = ACPI_TABLE_MPA(pm1a_cnt_blk);
+ fadt->pm_tm_len = 4;
+ fadt->xpm_tmr_blk.address_space_id = ACPI_ADR_SPACE_SYSTEM_MEMORY;
+ fadt->xpm_tmr_blk.register_bit_width = 8;
+ fadt->xpm_tmr_blk.address = ACPI_TABLE_MPA(pm_tmr_blk);
+
+ fadt->checksum = generate_acpi_checksum(fadt, fadt->length);
+
+ /* setup RSDP */
+ memcpy(rsdp->signature, RSDP_SIG, strlen(RSDP_SIG));
+ memcpy(rsdp->oem_id, "XEN", 3);
+ rsdp->revision = 2; /* ACPI 2.0 includes XSDT */
+ rsdp->length = sizeof(struct acpi20_table_rsdp);
+ rsdp->xsdt_address = ACPI_TABLE_MPA(xsdt);
+
+ rsdp->checksum = generate_acpi_checksum(rsdp,
+ ACPI_RSDP_CHECKSUM_LENGTH);
+ rsdp->ext_checksum = generate_acpi_checksum(rsdp, rsdp->length);
+
+ /* setup DSDT with trivial namespace. */
+ memcpy(dsdt->signature, DSDT_SIG, strlen(DSDT_SIG));
+ dsdt->revision = 1;
+ memcpy(dsdt->oem_id, "XEN", 3);
+ memcpy(dsdt->oem_table_id, "Xen/ia64", 8);
+ memcpy(dsdt->asl_compiler_id, "XEN", 3);
+ dsdt->asl_compiler_revision = (xen_major_version() << 16) |
+ xen_minor_version();
+
+ /* Trivial namespace, avoids ACPI CA complaints */
+ tables->aml[0] = 0x10; /* Scope */
+ tables->aml[1] = 0x40; /* length/offset to next object (patched) */
+ tables->aml[2] = 0x00;
+ memcpy(&tables->aml[3], "_SB_", 4);
+
+ /* The processor object isn't absolutely necessary, revist for SMP */
+ aml_len = 7;
+ for (i = 0; i < 3; i++) {
+ unsigned char *p = tables->aml + aml_len;
+ p[0] = 0x5b; /* processor object */
+ p[1] = 0x83;
+ p[2] = 0x0b; /* next */
+ p[3] = 'C';
+ p[4] = 'P';
+ snprintf ((char *)p + 5, 3, "%02x", i);
+ if (i < 16)
+ p[5] = 'U';
+ p[7] = i; /* acpi_id */
+ p[8] = 0; /* pblk_addr */
+ p[9] = 0;
+ p[10] = 0;
+ p[11] = 0;
+ p[12] = 0; /* pblk_len */
+ aml_len += 13;
+ }
+ tables->aml[1] = 0x40 + ((aml_len - 1) & 0x0f);
+ tables->aml[2] = (aml_len - 1) >> 4;
+ dsdt->length = sizeof(struct acpi_table_header) + aml_len;
+ dsdt->checksum = generate_acpi_checksum(dsdt, dsdt->length);
+
+ /* setup MADT */
+ memcpy(madt->header.signature, APIC_SIG,
sizeof(madt->header.signature));
+ madt->header.revision = 2;
+ memcpy(madt->header.oem_id, "XEN", 3);
+ memcpy(madt->header.oem_table_id, "Xen/ia64", 8);
+ memcpy(madt->header.asl_compiler_id, "XEN", 3);
+ madt->header.asl_compiler_revision = (xen_major_version() << 16) |
+ xen_minor_version();
+
+ /* An LSAPIC entry describes a CPU. */
+ nbr_cpus = 0;
+ for (i = 0; i < MAX_VIRT_CPUS; i++) {
+ lsapic[i].header.type = ACPI_MADT_LSAPIC;
+ lsapic[i].header.length = sizeof(struct acpi_table_lsapic);
+ lsapic[i].acpi_id = i;
+ lsapic[i].id = i;
+ lsapic[i].eid = 0;
+ //XXX replace d->vcpu[i] != NULL with XEN_DOMCTL_getvcpuinfo
+ if (d->vcpu[i] != NULL) {
+ lsapic[i].flags.enabled = 1;
+ nbr_cpus++;
+ }
+ }
+ madt->header.length = sizeof(struct acpi_table_madt) +
+ nbr_cpus * sizeof(struct acpi_table_lsapic);
+ madt->header.checksum = generate_acpi_checksum(madt,
+ madt->header.length);
+ return;
+}
+
+static int
+efi_mdt_cmp(const void *a, const void *b)
+{
+ const efi_memory_desc_t *x = a, *y = b;
+
+ if (x->phys_addr > y->phys_addr)
+ return 1;
+ if (x->phys_addr < y->phys_addr)
+ return -1;
+
+ // num_pages == 0 is allowed.
+ if (x->num_pages > y->num_pages)
+ return 1;
+ if (x->num_pages < y->num_pages)
+ return -1;
+
+ return 0;
+}
+
+#define NFUNCPTRS 16
+#define NUM_EFI_SYS_TABLES 6
+#define NUM_MEM_DESCS 64 //large enough
+
+struct fw_tables {
+ efi_system_table_t efi_systab;
+ efi_runtime_services_t efi_runtime;
+ efi_config_table_t efi_tables[NUM_EFI_SYS_TABLES];
+
+ struct ia64_sal_systab sal_systab;
+ struct ia64_sal_desc_entry_point sal_ed;
+ struct ia64_sal_desc_ap_wakeup sal_wakeup;
+ /* End of SAL descriptors. Do not forget to update checkum bound. */
+
+ fpswa_interface_t fpswa_inf;
+ efi_memory_desc_t efi_memmap[NUM_MEM_DESCS];
+ unsigned long func_ptrs[2*NFUNCPTRS];
+ struct xen_sal_data sal_data;
+ unsigned char fw_vendor[sizeof(FW_VENDOR)];
+};
+#define FW_FIELD_MPA(field) \
+ FW_TABLES_BASE_PADDR + offsetof(struct fw_tables, field)
+
+static void
+efi_systable_init_dom0(struct fw_tables *tables)
+{
+ int i = 1;
+ /* Write messages to the console. */
+ touch_acpi_table();
+
+ printk("Domain0 EFI passthrough:");
+ if (efi.mps) {
+ tables->efi_tables[i].guid = MPS_TABLE_GUID;
+ tables->efi_tables[i].table = __pa(efi.mps);
+ printk(" MPS=0x%lx",tables->efi_tables[i].table);
+ i++;
+ }
+
+ if (efi.acpi20) {
+ tables->efi_tables[i].guid = ACPI_20_TABLE_GUID;
+ tables->efi_tables[i].table = __pa(efi.acpi20);
+ printk(" ACPI 2.0=0x%lx",tables->efi_tables[i].table);
+ i++;
+ }
+ if (efi.acpi) {
+ tables->efi_tables[i].guid = ACPI_TABLE_GUID;
+ tables->efi_tables[i].table = __pa(efi.acpi);
+ printk(" ACPI=0x%lx",tables->efi_tables[i].table);
+ i++;
+ }
+ if (efi.smbios) {
+ tables->efi_tables[i].guid = SMBIOS_TABLE_GUID;
+ tables->efi_tables[i].table = __pa(efi.smbios);
+ printk(" SMBIOS=0x%lx",tables->efi_tables[i].table);
+ i++;
+ }
+ if (efi.hcdp) {
+ tables->efi_tables[i].guid = HCDP_TABLE_GUID;
+ tables->efi_tables[i].table = __pa(efi.hcdp);
+ printk(" HCDP=0x%lx",tables->efi_tables[i].table);
+ i++;
+ }
+ printk("\n");
+ BUG_ON(i > NUM_EFI_SYS_TABLES);
+}
+
+static void
+setup_dom0_memmap_info(struct domain *d, struct fw_tables *tables,
+ int *num_mds)
+{
+ int i;
+ efi_memory_desc_t *md;
+ efi_memory_desc_t *last_mem_md = NULL;
+ xen_ia64_memmap_info_t* memmap_info;
+ unsigned long paddr_start;
+ unsigned long paddr_end;
+
+ for (i = *num_mds - 1; i >= 0; i--) {
+ md = &tables->efi_memmap[i];
+ if (md->attribute == EFI_MEMORY_WB &&
+ md->type == EFI_CONVENTIONAL_MEMORY &&
+ md->num_pages >
+ 2 * (1UL << (PAGE_SHIFT - EFI_PAGE_SHIFT))) {
+ last_mem_md = md;
+ break;
+ }
+ }
+
+ if (last_mem_md == NULL) {
+ printk("%s: warning: "
+ "no dom0 contiguous memory to hold memory map\n",
+ __func__);
+ return;
+ }
+ paddr_end = last_mem_md->phys_addr +
+ (last_mem_md->num_pages << EFI_PAGE_SHIFT);
+ paddr_start = (paddr_end - PAGE_SIZE) & PAGE_MASK;
+ last_mem_md->num_pages -=
+ (paddr_end - paddr_start) / (1UL << EFI_PAGE_SHIFT);
+
+ md = &tables->efi_memmap[*num_mds];
+ (*num_mds)++;
+ md->type = EFI_RUNTIME_SERVICES_DATA;
+ md->phys_addr = paddr_start;
+ md->virt_addr = 0;
+ md->num_pages = 1UL << (PAGE_SHIFT - EFI_PAGE_SHIFT);
+ md->attribute = EFI_MEMORY_WB;
+
+ memmap_info = domain_mpa_to_imva(d, md->phys_addr);
+ BUG_ON(*num_mds > NUM_MEM_DESCS);
+
+ memmap_info->efi_memdesc_size = sizeof(md[0]);
+ memmap_info->efi_memdesc_version = EFI_MEMORY_DESCRIPTOR_VERSION;
+ memmap_info->efi_memmap_size = *num_mds * sizeof(md[0]);
+ memcpy(&memmap_info->memdesc, &tables->efi_memmap[0],
+ memmap_info->efi_memmap_size);
+ d->shared_info->arch.memmap_info_num_pages = 1;
+ d->shared_info->arch.memmap_info_pfn = md->phys_addr >> PAGE_SHIFT;
+
+ sort(tables->efi_memmap, *num_mds, sizeof(efi_memory_desc_t),
+ efi_mdt_cmp, NULL);
+}
+
+/* Complete the dom0 memmap. */
+static int
+complete_dom0_memmap(struct domain *d,
+ struct fw_tables *tables,
+ unsigned long maxmem,
+ int num_mds)
+{
+ efi_memory_desc_t *md;
+ u64 addr;
+ void *efi_map_start, *efi_map_end, *p;
+ u64 efi_desc_size;
+ int i;
+ unsigned long dom_mem = maxmem - (d->tot_pages << PAGE_SHIFT);
+
+ /* Walk through all MDT entries.
+ Copy all interesting entries. */
+ efi_map_start = __va(ia64_boot_param->efi_memmap);
+ efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
+ efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+ for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
+ const efi_memory_desc_t *md = p;
+ efi_memory_desc_t *dom_md = &tables->efi_memmap[num_mds];
+ u64 start = md->phys_addr;
+ u64 size = md->num_pages << EFI_PAGE_SHIFT;
+ u64 end = start + size;
+ u64 mpaddr;
+ unsigned long flags;
+
+ switch (md->type) {
+ case EFI_RUNTIME_SERVICES_CODE:
+ case EFI_RUNTIME_SERVICES_DATA:
+ case EFI_ACPI_RECLAIM_MEMORY:
+ case EFI_ACPI_MEMORY_NVS:
+ case EFI_RESERVED_TYPE:
+ /*
+ * Map into dom0 - We must respect protection
+ * and cache attributes. Not all of these pages
+ * are writable!!!
+ */
+ flags = ASSIGN_writable; /* dummy - zero */
+ if (md->attribute & EFI_MEMORY_WP)
+ flags |= ASSIGN_readonly;
+ if ((md->attribute & EFI_MEMORY_UC) &&
+ !(md->attribute & EFI_MEMORY_WB))
+ flags |= ASSIGN_nocache;
+
+ assign_domain_mach_page(d, start, size, flags);
+
+ /* Fall-through. */
+ case EFI_MEMORY_MAPPED_IO:
+ /* Will be mapped with ioremap. */
+ /* Copy descriptor. */
+ *dom_md = *md;
+ dom_md->virt_addr = 0;
+ num_mds++;
+ break;
+
+ case EFI_MEMORY_MAPPED_IO_PORT_SPACE:
+ flags = ASSIGN_writable; /* dummy - zero */
+ if (md->attribute & EFI_MEMORY_UC)
+ flags |= ASSIGN_nocache;
+
+ if (start > 0x1ffffffff0000000UL) {
+ mpaddr = 0x4000000000000UL - size;
+ printk(XENLOG_INFO "Remapping IO ports from "
+ "%lx to %lx\n", start, mpaddr);
+ } else
+ mpaddr = start;
+
+ /* Map into dom0. */
+ assign_domain_mmio_page(d, mpaddr, start, size, flags);
+ /* Copy descriptor. */
+ *dom_md = *md;
+ dom_md->phys_addr = mpaddr;
+ dom_md->virt_addr = 0;
+ num_mds++;
+ break;
+
+ case EFI_CONVENTIONAL_MEMORY:
+ case EFI_LOADER_CODE:
+ case EFI_LOADER_DATA:
+ case EFI_BOOT_SERVICES_CODE:
+ case EFI_BOOT_SERVICES_DATA:
+ if (!(md->attribute & EFI_MEMORY_WB))
+ break;
+
+ start = max(FW_END_PADDR, start);
+ end = min(start + dom_mem, end);
+ if (end <= start)
+ break;
+
+ dom_md->type = EFI_CONVENTIONAL_MEMORY;
+ dom_md->phys_addr = start;
+ dom_md->virt_addr = 0;
+ dom_md->num_pages = (end - start) >> EFI_PAGE_SHIFT;
+ dom_md->attribute = EFI_MEMORY_WB;
+ num_mds++;
+
+ dom_mem -= dom_md->num_pages << EFI_PAGE_SHIFT;
+ break;
+
+ case EFI_UNUSABLE_MEMORY:
+ case EFI_PAL_CODE:
+ /*
+ * We don't really need these, but holes in the
+ * memory map may cause Linux to assume there are
+ * uncacheable ranges within a granule.
+ */
+ dom_md->type = EFI_UNUSABLE_MEMORY;
+ dom_md->phys_addr = start;
+ dom_md->virt_addr = 0;
+ dom_md->num_pages = (end - start) >> EFI_PAGE_SHIFT;
+ dom_md->attribute = EFI_MEMORY_WB;
+ num_mds++;
+ break;
+
+ default:
+ /* Print a warning but continue. */
+ printk("complete_dom0_memmap: warning: "
+ "unhandled MDT entry type %u\n", md->type);
+ }
+ }
+ BUG_ON(num_mds > NUM_MEM_DESCS);
+
+ sort(tables->efi_memmap, num_mds, sizeof(efi_memory_desc_t),
+ efi_mdt_cmp, NULL);
+
+ /* setup_guest() @ libxc/xc_linux_build() arranges memory for domU.
+ * however no one arranges memory for dom0,
+ * instead we allocate pages manually.
+ */
+ for (i = 0; i < num_mds; i++) {
+ md = &tables->efi_memmap[i];
+
+ if (md->type == EFI_LOADER_DATA ||
+ md->type == EFI_PAL_CODE ||
+ md->type == EFI_CONVENTIONAL_MEMORY) {
+ unsigned long start = md->phys_addr & PAGE_MASK;
+ unsigned long end = md->phys_addr +
+ (md->num_pages << EFI_PAGE_SHIFT);
+
+ if (end == start) {
+ /* md->num_pages = 0 is allowed. */
+ continue;
+ }
+
+ for (addr = start; addr < end; addr += PAGE_SIZE)
+ assign_new_domain0_page(d, addr);
+ }
+ }
+ // Map low-memory holes & unmapped MMIO for legacy drivers
+ for (addr = 0; addr < ONE_MB; addr += PAGE_SIZE) {
+ if (domain_page_mapped(d, addr))
+ continue;
+
+ if (efi_mmio(addr, PAGE_SIZE)) {
+ unsigned long flags;
+ flags = ASSIGN_writable | ASSIGN_nocache;
+ assign_domain_mmio_page(d, addr, addr,
+ PAGE_SIZE, flags);
+ }
+ }
+ setup_dom0_memmap_info(d, tables, &num_mds);
+ return num_mds;
+}
+
+static void
+efi_systable_init_domu(struct fw_tables *tables)
+{
+ int i = 1;
+ printk(XENLOG_GUEST XENLOG_INFO "DomainU EFI build up:");
+
+ tables->efi_tables[i].guid = ACPI_20_TABLE_GUID;
+ tables->efi_tables[i].table = FW_ACPI_BASE_PADDR;
+ printk(" ACPI 2.0=0x%lx",tables->efi_tables[i].table);
+ i++;
+ printk("\n");
+ BUG_ON(i > NUM_EFI_SYS_TABLES);
+}
+
+static int
+complete_domu_memmap(struct domain *d,
+ struct fw_tables *tables,
+ unsigned long maxmem,
+ int num_mds,
+ unsigned long memmap_info_pfn,
+ unsigned long reserved_size)
+{
+ efi_memory_desc_t *md;
+ int i = num_mds; /* for MAKE_MD */
+ int create_memmap = 0;
+ xen_ia64_memmap_info_t* memmap_info;
+ unsigned long paddr_start;
+ unsigned long paddr_end;
+ void *p;
+ void *memmap_start;
+ void *memmap_end;
+
+ if (memmap_info_pfn == 0 || reserved_size == 0) {
+ /* old domain builder which doesn't setup
+ * memory map. create it for compatibility */
+ memmap_info_pfn = (maxmem >> PAGE_SHIFT) - 1;
+ /* 4 = memmap info page, start info page, xenstore page and
+ console page */
+ reserved_size = 4 << PAGE_SHIFT;
+ create_memmap = 1;
+ }
+ paddr_start = memmap_info_pfn << PAGE_SHIFT;
+ paddr_end = paddr_start + reserved_size;
+ memmap_info = domain_mpa_to_imva(d, paddr_start);//XXX replace this
with xc_map_foreign_map_range()
+ if (memmap_info->efi_memmap_size == 0) {
+ create_memmap = 1;
+ } else if (memmap_info->efi_memdesc_size != sizeof(md[0]) ||
+ memmap_info->efi_memdesc_version !=
+ EFI_MEMORY_DESCRIPTOR_VERSION) {
+ printk(XENLOG_WARNING
+ "%s: Warning: unknown memory map "
+ "memmap size %"PRIu64" "
+ "memdesc size %"PRIu64" "
+ "version %"PRIu32"\n",
+ __func__,
+ memmap_info->efi_memmap_size,
+ memmap_info->efi_memdesc_size,
+ memmap_info->efi_memdesc_version);
+ create_memmap = 1;
+ } else if (reserved_size < memmap_info->efi_memmap_size) {
+ printk(XENLOG_WARNING
+ "%s: Warning: too short reserved size %"PRIu64"\n",
+ __func__, reserved_size);
+ return -EINVAL;
+ } else if (memmap_info->efi_memmap_size >
+ PAGE_SIZE - sizeof(*memmap_info)) {
+ /*
+ * curently memmap spanning more than single page isn't
+ * supported.
+ */
+ printk(XENLOG_WARNING
+ "%s: Warning: too large reserved_size %"PRIu64"\n",
+ __func__, memmap_info->efi_memmap_size);
+ return -ENOSYS;
+ }
+
+ if (create_memmap) {
+ /*
+ * old domain builder which doesn't setup
+ * memory map. create it for compatibility
+ */
+ memmap_info->efi_memdesc_size = sizeof(md[0]);
+ memmap_info->efi_memdesc_version =
+ EFI_MEMORY_DESCRIPTOR_VERSION;
+ memmap_info->efi_memmap_size = 1 * sizeof(md[0]);
+ md = (efi_memory_desc_t*)&memmap_info->memdesc;
+ md[num_mds].type = EFI_CONVENTIONAL_MEMORY;
+ md[num_mds].pad = 0;
+ md[num_mds].phys_addr = 0;
+ md[num_mds].virt_addr = 0;
+ md[num_mds].num_pages = maxmem >> EFI_PAGE_SHIFT;
+ md[num_mds].attribute = EFI_MEMORY_WB;
+ }
+
+ memmap_start = &memmap_info->memdesc;
+ memmap_end = memmap_start + memmap_info->efi_memmap_size;
+ /* XXX Currently the table must be in a single page. */
+ if ((unsigned long)memmap_end > (unsigned long)memmap_info + PAGE_SIZE)
+ return -EINVAL;
+
+ /* sort it bofore use
+ * XXX: this is created by user space domain builder so that
+ * we should check its integrity */
+ sort(&memmap_info->memdesc,
+ memmap_info->efi_memmap_size / memmap_info->efi_memdesc_size,
+ memmap_info->efi_memdesc_size,
+ efi_mdt_cmp, NULL);
+
+ for (p = memmap_start; p < memmap_end; p +=
memmap_info->efi_memdesc_size) {
+ unsigned long start;
+ unsigned long end;
+ md = p;
+ start = md->phys_addr;
+ end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
+
+ if (start < FW_END_PADDR)
+ start = FW_END_PADDR;
+ if (end <= start)
+ continue;
+
+ /* exclude [paddr_start, paddr_end) */
+ if (paddr_end <= start || end <= paddr_start) {
+ MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB,
+ start, end);
+ } else if (paddr_start <= start && paddr_end < end) {
+ MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB,
+ paddr_end, end);
+ } else if (start < paddr_start && end <= paddr_end) {
+ MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB,
+ start, paddr_start);
+ } else {
+ MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB,
+ start, paddr_start);
+ MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB,
+ paddr_end, end);
+ }
+ }
+
+ /* memmap info page. */
+ MAKE_MD(EFI_RUNTIME_SERVICES_DATA, EFI_MEMORY_WB,
+ paddr_start, paddr_end);
+
+ /* Create an entry for IO ports. */
+ MAKE_MD(EFI_MEMORY_MAPPED_IO_PORT_SPACE, EFI_MEMORY_UC,
+ IO_PORTS_PADDR, IO_PORTS_PADDR + IO_PORTS_SIZE);
+
+ num_mds = i;
+ sort(tables->efi_memmap, num_mds, sizeof(efi_memory_desc_t),
+ efi_mdt_cmp, NULL);
+ return num_mds;
+}
+
+static int
+dom_fw_init(struct domain *d,
+ u64 brkimm,
+ struct ia64_boot_param *bp,
+ struct fw_tables *tables,
+ unsigned long hypercalls_imva,
+ unsigned long maxmem)
+{
+ efi_memory_desc_t *md;
+ unsigned long pfn;
+ unsigned char checksum;
+ char *cp;
+ int num_mds, i;
+
+ memset(tables, 0, sizeof(struct fw_tables));
+
+ /* EFI systab. */
+ tables->efi_systab.hdr.signature = EFI_SYSTEM_TABLE_SIGNATURE;
+ tables->efi_systab.hdr.revision = EFI_SYSTEM_TABLE_REVISION;
+ tables->efi_systab.hdr.headersize = sizeof(tables->efi_systab.hdr);
+
+ memcpy(tables->fw_vendor,FW_VENDOR,sizeof(FW_VENDOR));
+ tables->efi_systab.fw_vendor = FW_FIELD_MPA(fw_vendor);
+ tables->efi_systab.fw_revision = 1;
+ tables->efi_systab.runtime = (void *)FW_FIELD_MPA(efi_runtime);
+ tables->efi_systab.nr_tables = NUM_EFI_SYS_TABLES;
+ tables->efi_systab.tables = FW_FIELD_MPA(efi_tables);
+
+ /* EFI runtime. */
+ tables->efi_runtime.hdr.signature = EFI_RUNTIME_SERVICES_SIGNATURE;
+ tables->efi_runtime.hdr.revision = EFI_RUNTIME_SERVICES_REVISION;
+ tables->efi_runtime.hdr.headersize = sizeof(tables->efi_runtime.hdr);
+
+ pfn = 0;
+ EFI_HYPERCALL_PATCH(get_time,EFI_GET_TIME);
+ EFI_HYPERCALL_PATCH(set_time,EFI_SET_TIME);
+ EFI_HYPERCALL_PATCH(get_wakeup_time,EFI_GET_WAKEUP_TIME);
+ EFI_HYPERCALL_PATCH(set_wakeup_time,EFI_SET_WAKEUP_TIME);
+ EFI_HYPERCALL_PATCH(set_virtual_address_map,
+ EFI_SET_VIRTUAL_ADDRESS_MAP);
+ EFI_HYPERCALL_PATCH(get_variable,EFI_GET_VARIABLE);
+ EFI_HYPERCALL_PATCH(get_next_variable,EFI_GET_NEXT_VARIABLE);
+ EFI_HYPERCALL_PATCH(set_variable,EFI_SET_VARIABLE);
+ EFI_HYPERCALL_PATCH(get_next_high_mono_count,
+ EFI_GET_NEXT_HIGH_MONO_COUNT);
+ EFI_HYPERCALL_PATCH(reset_system,EFI_RESET_SYSTEM);
+
+ /* System tables. */
+ tables->efi_tables[0].guid = SAL_SYSTEM_TABLE_GUID;
+ tables->efi_tables[0].table = FW_FIELD_MPA(sal_systab);
+ for (i = 1; i < NUM_EFI_SYS_TABLES; i++) {
+ tables->efi_tables[i].guid = NULL_GUID;
+ tables->efi_tables[i].table = 0;
+ }
+ if (d == dom0) {
+ efi_systable_init_dom0(tables);
+ } else {
+ efi_systable_init_domu(tables);
+ }
+
+ /* fill in the SAL system table: */
+ memcpy(tables->sal_systab.signature, "SST_", 4);
+ tables->sal_systab.size = sizeof(tables->sal_systab);
+ tables->sal_systab.sal_rev_minor = 1;
+ tables->sal_systab.sal_rev_major = 0;
+ tables->sal_systab.entry_count = 2;
+
+ memcpy((char *)tables->sal_systab.oem_id, "Xen/ia64", 8);
+ memcpy((char *)tables->sal_systab.product_id, "Xen/ia64", 8);
+
+ /* PAL entry point: */
+ tables->sal_ed.type = SAL_DESC_ENTRY_POINT;
+ tables->sal_ed.pal_proc = FW_HYPERCALL_PAL_CALL_PADDR;
+ dom_fw_pal_hypercall_patch(brkimm, tables->sal_ed.pal_proc,
+ hypercalls_imva);
+ /* SAL entry point. */
+ tables->sal_ed.sal_proc = FW_HYPERCALL_SAL_CALL_PADDR;
+ dom_fw_hypercall_patch(brkimm, tables->sal_ed.sal_proc,
+ FW_HYPERCALL_SAL_CALL, 1, hypercalls_imva);
+ tables->sal_ed.gp = 0; /* will be ignored */
+
+ /* Fill an AP wakeup descriptor. */
+ tables->sal_wakeup.type = SAL_DESC_AP_WAKEUP;
+ tables->sal_wakeup.mechanism = IA64_SAL_AP_EXTERNAL_INT;
+ tables->sal_wakeup.vector = XEN_SAL_BOOT_RENDEZ_VEC;
+
+ /* Compute checksum. */
+ checksum = 0;
+ for (cp = (char *)&tables->sal_systab;
+ cp < (char *)&tables->fpswa_inf;
+ ++cp)
+ checksum += *cp;
+ tables->sal_systab.checksum = -checksum;
+
+ /* SAL return point. */
+ dom_fw_hypercall_patch(brkimm, FW_HYPERCALL_SAL_RETURN_PADDR,
+ FW_HYPERCALL_SAL_RETURN, 0, hypercalls_imva);
+
+ /* Fill in the FPSWA interface: */
+ if (fpswa_interface) {
+ tables->fpswa_inf.revision = fpswa_interface->revision;
+ dom_fpswa_hypercall_patch(brkimm, hypercalls_imva);
+ tables->fpswa_inf.fpswa =
+ (void *)FW_HYPERCALL_FPSWA_ENTRY_PADDR;
+ }
+
+ i = 0; /* Used by MAKE_MD */
+
+ /* hypercall patches live here, masquerade as reserved PAL memory */
+ MAKE_MD(EFI_PAL_CODE,EFI_MEMORY_WB|EFI_MEMORY_RUNTIME,
+ FW_HYPERCALL_BASE_PADDR, FW_HYPERCALL_END_PADDR);
+
+ /* Create dom0/domu md entry for fw and cpi tables area. */
+ MAKE_MD(EFI_ACPI_MEMORY_NVS, EFI_MEMORY_WB | EFI_MEMORY_RUNTIME,
+ FW_ACPI_BASE_PADDR, FW_ACPI_END_PADDR);
+ MAKE_MD(EFI_RUNTIME_SERVICES_DATA, EFI_MEMORY_WB | EFI_MEMORY_RUNTIME,
+ FW_TABLES_BASE_PADDR, FW_TABLES_END_PADDR);
+
+ if (d != dom0 || running_on_sim) {
+ /* DomU (or hp-ski).
+ Create a continuous memory area. */
+ /* kludge: bp->efi_memmap is used to pass memmap_info
+ * page's pfn and number of pages to reserve.
+ * Currently the following pages must be reserved.
+ * memmap info page, start info page, xenstore page
+ * and console page.
+ * see ia64_setup_memmap() @ xc_dom_boot.c
+ */
+ num_mds = complete_domu_memmap(d, tables, maxmem, i,
+ bp->efi_memmap,
+ bp->efi_memmap_size);
+ } else {
+ /* Dom0.
+ We must preserve ACPI data from real machine,
+ as well as IO areas. */
+ num_mds = complete_dom0_memmap(d, tables, maxmem, i);
+ }
+ if (num_mds < 0)
+ return num_mds;
+
+ /* Display memmap. */
+ for (i = 0 ; i < num_mds; i++)
+ print_md(&tables->efi_memmap[i]);
+
+ /* Fill boot_param */
+ bp->efi_systab = FW_FIELD_MPA(efi_systab);
+ bp->efi_memmap = FW_FIELD_MPA(efi_memmap);
+ bp->efi_memmap_size = num_mds * sizeof(efi_memory_desc_t);
+ bp->efi_memdesc_size = sizeof(efi_memory_desc_t);
+ bp->efi_memdesc_version = EFI_MEMDESC_VERSION;
+ bp->command_line = 0;
+ bp->console_info.num_cols = 80;
+ bp->console_info.num_rows = 25;
+ bp->console_info.orig_x = 0;
+ bp->console_info.orig_y = 24;
+ if (fpswa_interface)
+ bp->fpswa = FW_FIELD_MPA(fpswa_inf);
+ return 0;
+}
+
+static void
+dom_fw_domain_init(struct domain *d, struct fw_tables *tables)
+{
+ /* Initialise for EFI_SET_VIRTUAL_ADDRESS_MAP emulation */
+ d->arch.efi_runtime = &tables->efi_runtime;
+ d->arch.fpswa_inf = &tables->fpswa_inf;
+ d->arch.sal_data = &tables->sal_data;
+}
+
+static int
+dom_fw_set_convmem_end(struct domain *d)
+{
+ xen_ia64_memmap_info_t* memmap_info;
+ efi_memory_desc_t *md;
+ void *p;
+ void *memmap_start;
+ void *memmap_end;
+
+ if (d->shared_info->arch.memmap_info_pfn == 0)
+ return -EINVAL;
+
+ memmap_info = domain_mpa_to_imva(d,
d->shared_info->arch.memmap_info_pfn << PAGE_SHIFT);
+ if (memmap_info->efi_memmap_size == 0 ||
+ memmap_info->efi_memdesc_size != sizeof(*md) ||
+ memmap_info->efi_memdesc_version !=
+ EFI_MEMORY_DESCRIPTOR_VERSION)
+ return -EINVAL;
+ /* only 1page case is supported */
+ if (d->shared_info->arch.memmap_info_num_pages != 1)
+ return -ENOSYS;
+
+ memmap_start = &memmap_info->memdesc;
+ memmap_end = memmap_start + memmap_info->efi_memmap_size;
+
+ /* XXX Currently the table must be in a single page. */
+ if ((unsigned long)memmap_end > (unsigned long)memmap_info + PAGE_SIZE)
+ return -EINVAL;
+
+ /* sort it bofore use
+ * XXX: this is created by user space domain builder so that
+ * we should check its integrity */
+ sort(&memmap_info->memdesc,
+ memmap_info->efi_memmap_size / memmap_info->efi_memdesc_size,
+ memmap_info->efi_memdesc_size,
+ efi_mdt_cmp, NULL);
+
+ if (d->arch.convmem_end == 0)
+ d->arch.convmem_end = d->max_pages << PAGE_SHIFT;
+ for (p = memmap_start; p < memmap_end; p +=
memmap_info->efi_memdesc_size) {
+ unsigned long end;
+ md = p;
+ end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
+ if (md->attribute == EFI_MEMORY_WB &&
+ md->type == EFI_CONVENTIONAL_MEMORY &&
+ md->num_pages > 0 &&
+ d->arch.convmem_end < end)
+ d->arch.convmem_end = end;
+ }
+ return 0;
+}
+
+int
+dom_fw_setup(struct domain *d, unsigned long bp_mpa, unsigned long maxmem)
+{
+ int ret = 0;
+ struct ia64_boot_param *bp;
+ unsigned long imva_tables_base;
+ unsigned long imva_hypercall_base;
+
+ BUILD_BUG_ON(sizeof(struct fw_tables) >
+ (FW_TABLES_END_PADDR - FW_TABLES_BASE_PADDR));
+
+ BUILD_BUG_ON(sizeof(struct fake_acpi_tables) >
+ (FW_ACPI_END_PADDR - FW_ACPI_BASE_PADDR));
+
+ /* Create page for hypercalls. */
+ assign_new_domain_page_if_dom0(d, FW_HYPERCALL_BASE_PADDR);
+ imva_hypercall_base = (unsigned long)domain_mpa_to_imva
+ (d, FW_HYPERCALL_BASE_PADDR);
+
+ /* Create page for acpi tables. */
+ if (d != dom0) {
+ void *imva;
+
+ assign_new_domain_page_if_dom0(d, FW_ACPI_BASE_PADDR);
+ imva = domain_mpa_to_imva (d, FW_ACPI_BASE_PADDR);
+ dom_fw_fake_acpi(d, (struct fake_acpi_tables *)imva);
+ }
+
+ /* Create page for FW tables. */
+ assign_new_domain_page_if_dom0(d, FW_TABLES_BASE_PADDR);
+ imva_tables_base = (unsigned long)domain_mpa_to_imva
+ (d, FW_TABLES_BASE_PADDR);
+
+ /* Create page for boot_param. */
+ assign_new_domain_page_if_dom0(d, bp_mpa);
+ bp = domain_mpa_to_imva(d, bp_mpa);
+ if (d != dom0) {
+ /*
+ * XXX kludge.
+ * when XEN_DOMCTL_arch_setup is called, shared_info can't
+ * be accessed by libxc so that memmap_info_pfn isn't
+ * initialized. But dom_fw_set_convmem_end() requires it,
+ * so here we initialize it.
+ * note:dom_fw_init() overwrites memmap_info_num_pages,
+ * memmap_info_pfns.
+ */
+ if ((bp->efi_memmap_size & ~PAGE_MASK) != 0) {
+ printk("%s:%d size 0x%lx 0x%lx 0x%lx\n",
+ __func__, __LINE__,
+ bp->efi_memmap_size,
+ bp->efi_memmap_size & ~PAGE_SIZE,
+ ~PAGE_SIZE);
+ return -EINVAL;
+ }
+ if (bp->efi_memmap_size == 0) {
+ /* old domain builder compatibility */
+ d->shared_info->arch.memmap_info_num_pages = 1;
+ d->shared_info->arch.memmap_info_pfn =
+ (maxmem >> PAGE_SHIFT) - 1;
+ } else {
+ /*
+ * 3: start info page, xenstore page and console page
+ */
+ if (bp->efi_memmap_size < 4 * PAGE_SIZE)
+ return -EINVAL;
+ d->shared_info->arch.memmap_info_num_pages =
+ (bp->efi_memmap_size >> PAGE_SHIFT) - 3;
+ d->shared_info->arch.memmap_info_pfn = bp->efi_memmap;
+ /* currently multi page memmap isn't supported */
+ if (d->shared_info->arch.memmap_info_num_pages != 1)
+ return -ENOSYS;
+ }
+ }
+ ret = dom_fw_init(d, d->arch.breakimm, bp,
+ (struct fw_tables *)imva_tables_base,
+ imva_hypercall_base, maxmem);
+ if (ret < 0)
+ return ret;
+
+ dom_fw_domain_init(d, (struct fw_tables *)imva_tables_base);
+ return dom_fw_set_convmem_end(d);
+}
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