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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v4 08/21] acpi/hvmloader: Replace mem_alloc() and virt_to_phys() with memory ops
Components that wish to use ACPI builder will need to provide their own
mem_alloc() and virt_to_phys() routines. Pointers to these routines will
be passed to the builder as memory ops.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
Changes in v4:
* Added comment to acpi_mem_free()
tools/firmware/hvmloader/acpi/build.c | 95 ++++++++++++++++++---------------
tools/firmware/hvmloader/acpi/libacpi.h | 10 +++-
tools/firmware/hvmloader/util.c | 24 ++++++++-
3 files changed, 84 insertions(+), 45 deletions(-)
diff --git a/tools/firmware/hvmloader/acpi/build.c
b/tools/firmware/hvmloader/acpi/build.c
index 537933b..1dd9987 100644
--- a/tools/firmware/hvmloader/acpi/build.c
+++ b/tools/firmware/hvmloader/acpi/build.c
@@ -71,7 +71,8 @@ static void set_checksum(
p[checksum_offset] = -sum;
}
-static struct acpi_20_madt *construct_madt(const struct acpi_config *config,
+static struct acpi_20_madt *construct_madt(struct acpi_ctxt *ctxt,
+ const struct acpi_config *config,
struct acpi_info *info)
{
struct acpi_20_madt *madt;
@@ -86,7 +87,7 @@ static struct acpi_20_madt *construct_madt(const struct
acpi_config *config,
sz += sizeof(struct acpi_20_madt_ioapic);
sz += sizeof(struct acpi_20_madt_lapic) * hvminfo->nr_vcpus;
- madt = mem_alloc(sz, 16);
+ madt = ctxt->mem_ops.alloc(ctxt, sz, 16);
if (!madt) return NULL;
memset(madt, 0, sizeof(*madt));
@@ -166,11 +167,12 @@ static struct acpi_20_madt *construct_madt(const struct
acpi_config *config,
return madt;
}
-static struct acpi_20_hpet *construct_hpet(void)
+static struct acpi_20_hpet *construct_hpet(struct acpi_ctxt *ctxt,
+ const struct acpi_config *config)
{
struct acpi_20_hpet *hpet;
- hpet = mem_alloc(sizeof(*hpet), 16);
+ hpet = ctxt->mem_ops.alloc(ctxt, sizeof(*hpet), 16);
if (!hpet) return NULL;
memset(hpet, 0, sizeof(*hpet));
@@ -189,11 +191,12 @@ static struct acpi_20_hpet *construct_hpet(void)
return hpet;
}
-static struct acpi_20_waet *construct_waet(void)
+static struct acpi_20_waet *construct_waet(struct acpi_ctxt *ctxt,
+ const struct acpi_config *config)
{
struct acpi_20_waet *waet;
- waet = mem_alloc(sizeof(*waet), 16);
+ waet = ctxt->mem_ops.alloc(ctxt, sizeof(*waet), 16);
if (!waet) return NULL;
memcpy(waet, &Waet, sizeof(*waet));
@@ -204,7 +207,8 @@ static struct acpi_20_waet *construct_waet(void)
return waet;
}
-static struct acpi_20_srat *construct_srat(const struct acpi_config *config)
+static struct acpi_20_srat *construct_srat(struct acpi_ctxt *ctxt,
+ const struct acpi_config *config)
{
struct acpi_20_srat *srat;
struct acpi_20_srat_processor *processor;
@@ -216,7 +220,7 @@ static struct acpi_20_srat *construct_srat(const struct
acpi_config *config)
size = sizeof(*srat) + sizeof(*processor) * config->hvminfo->nr_vcpus +
sizeof(*memory) * config->numa.nr_vmemranges;
- p = mem_alloc(size, 16);
+ p = ctxt->mem_ops.alloc(ctxt, size, 16);
if ( !p )
return NULL;
@@ -262,7 +266,8 @@ static struct acpi_20_srat *construct_srat(const struct
acpi_config *config)
return srat;
}
-static struct acpi_20_slit *construct_slit(const struct acpi_config *config)
+static struct acpi_20_slit *construct_slit(struct acpi_ctxt *ctxt,
+ const struct acpi_config *config)
{
struct acpi_20_slit *slit;
unsigned int i, num, size;
@@ -270,7 +275,7 @@ static struct acpi_20_slit *construct_slit(const struct
acpi_config *config)
num = config->numa.nr_vnodes * config->numa.nr_vnodes;
size = sizeof(*slit) + num * sizeof(uint8_t);
- slit = mem_alloc(size, 16);
+ slit = ctxt->mem_ops.alloc(ctxt, size, 16);
if ( !slit )
return NULL;
@@ -294,7 +299,8 @@ static struct acpi_20_slit *construct_slit(const struct
acpi_config *config)
return slit;
}
-static int construct_passthrough_tables(unsigned long *table_ptrs,
+static int construct_passthrough_tables(struct acpi_ctxt *ctxt,
+ unsigned long *table_ptrs,
int nr_tables,
struct acpi_config *config)
{
@@ -317,7 +323,7 @@ static int construct_passthrough_tables(unsigned long
*table_ptrs,
header = (struct acpi_header*)pt_addr;
- buffer = mem_alloc(header->length, 16);
+ buffer = ctxt->mem_ops.alloc(ctxt, header->length, 16);
if ( buffer == NULL )
break;
memcpy(buffer, header, header->length);
@@ -330,7 +336,8 @@ static int construct_passthrough_tables(unsigned long
*table_ptrs,
return nr_added;
}
-static int construct_secondary_tables(unsigned long *table_ptrs,
+static int construct_secondary_tables(struct acpi_ctxt *ctxt,
+ unsigned long *table_ptrs,
struct acpi_config *config,
struct acpi_info *info)
{
@@ -346,7 +353,7 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
/* MADT. */
if ( (config->hvminfo->nr_vcpus > 1) || config->hvminfo->apic_mode )
{
- madt = construct_madt(config, info);
+ madt = construct_madt(ctxt, config, info);
if (!madt) return -1;
table_ptrs[nr_tables++] = (unsigned long)madt;
}
@@ -354,7 +361,7 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
/* HPET. */
if ( info->hpet_present )
{
- hpet = construct_hpet();
+ hpet = construct_hpet(ctxt, config);
if (!hpet) return -1;
table_ptrs[nr_tables++] = (unsigned long)hpet;
}
@@ -362,7 +369,7 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
/* WAET. */
if ( config->table_flags & ACPI_HAS_WAET )
{
- waet = construct_waet();
+ waet = construct_waet(ctxt, config);
if ( !waet )
return -1;
table_ptrs[nr_tables++] = (unsigned long)waet;
@@ -370,7 +377,7 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
if ( config->table_flags & ACPI_HAS_SSDT_PM )
{
- ssdt = mem_alloc(sizeof(ssdt_pm), 16);
+ ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_pm), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_pm, sizeof(ssdt_pm));
table_ptrs[nr_tables++] = (unsigned long)ssdt;
@@ -378,7 +385,7 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
if ( config->table_flags & ACPI_HAS_SSDT_S3 )
{
- ssdt = mem_alloc(sizeof(ssdt_s3), 16);
+ ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_s3), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_s3, sizeof(ssdt_s3));
table_ptrs[nr_tables++] = (unsigned long)ssdt;
@@ -388,7 +395,7 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
if ( config->table_flags & ACPI_HAS_SSDT_S4 )
{
- ssdt = mem_alloc(sizeof(ssdt_s4), 16);
+ ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_s4), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_s4, sizeof(ssdt_s4));
table_ptrs[nr_tables++] = (unsigned long)ssdt;
@@ -402,12 +409,12 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
(config->tis_hdr[1] == tis_signature[1]) &&
(config->tis_hdr[2] == tis_signature[2]) )
{
- ssdt = mem_alloc(sizeof(ssdt_tpm), 16);
+ ssdt = ctxt->mem_ops.alloc(ctxt, sizeof(ssdt_tpm), 16);
if (!ssdt) return -1;
memcpy(ssdt, ssdt_tpm, sizeof(ssdt_tpm));
table_ptrs[nr_tables++] = (unsigned long)ssdt;
- tcpa = mem_alloc(sizeof(struct acpi_20_tcpa), 16);
+ tcpa = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_tcpa), 16);
if (!tcpa) return -1;
memset(tcpa, 0, sizeof(*tcpa));
table_ptrs[nr_tables++] = (unsigned long)tcpa;
@@ -420,9 +427,9 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
tcpa->header.oem_revision = ACPI_OEM_REVISION;
tcpa->header.creator_id = ACPI_CREATOR_ID;
tcpa->header.creator_revision = ACPI_CREATOR_REVISION;
- if ( (lasa = mem_alloc(ACPI_2_0_TCPA_LAML_SIZE, 16)) != NULL )
+ if ( (lasa = ctxt->mem_ops.alloc(ctxt, ACPI_2_0_TCPA_LAML_SIZE, 16))
!= NULL )
{
- tcpa->lasa = virt_to_phys(lasa);
+ tcpa->lasa = ctxt->mem_ops.v2p(ctxt, lasa);
tcpa->laml = ACPI_2_0_TCPA_LAML_SIZE;
memset(lasa, 0, tcpa->laml);
set_checksum(tcpa,
@@ -434,8 +441,8 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
/* SRAT and SLIT */
if ( config->numa.nr_vnodes > 0 )
{
- struct acpi_20_srat *srat = construct_srat(config);
- struct acpi_20_slit *slit = construct_slit(config);
+ struct acpi_20_srat *srat = construct_srat(ctxt, config);
+ struct acpi_20_slit *slit = construct_slit(ctxt, config);
if ( srat )
table_ptrs[nr_tables++] = (unsigned long)srat;
@@ -448,7 +455,8 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
}
/* Load any additional tables passed through. */
- nr_tables += construct_passthrough_tables(table_ptrs, nr_tables, config);
+ nr_tables += construct_passthrough_tables(ctxt, table_ptrs,
+ nr_tables, config);
table_ptrs[nr_tables] = 0;
return nr_tables;
@@ -461,7 +469,8 @@ static int construct_secondary_tables(unsigned long
*table_ptrs,
*
* Return 0 if memory failure, != 0 if success
*/
-static int new_vm_gid(struct acpi_config *config,
+static int new_vm_gid(struct acpi_ctxt *ctxt,
+ struct acpi_config *config,
struct acpi_info *info)
{
uint64_t *buf;
@@ -473,19 +482,19 @@ static int new_vm_gid(struct acpi_config *config,
return 1;
/* copy to allocate BIOS memory */
- buf = mem_alloc(sizeof(config->vm_gid), 8);
+ buf = ctxt->mem_ops.alloc(ctxt, sizeof(config->vm_gid), 8);
if ( !buf )
return 0;
memcpy(buf, config->vm_gid, sizeof(config->vm_gid));
/* set the address into ACPI table and also pass it back to the caller */
- info->vm_gid_addr = virt_to_phys(buf);
+ info->vm_gid_addr = ctxt->mem_ops.v2p(ctxt, buf);
config->vm_gid_addr = info->vm_gid_addr;
return 1;
}
-void acpi_build_tables(struct acpi_config *config)
+void acpi_build_tables(struct acpi_ctxt *ctxt, struct acpi_config *config)
{
struct acpi_info *acpi_info;
struct acpi_20_rsdp *rsdp;
@@ -516,7 +525,7 @@ void acpi_build_tables(struct acpi_config *config)
* Fill in high-memory data structures, starting at @buf.
*/
- facs = mem_alloc(sizeof(struct acpi_20_facs), 16);
+ facs = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_facs), 16);
if (!facs) goto oom;
memcpy(facs, &Facs, sizeof(struct acpi_20_facs));
@@ -530,13 +539,13 @@ void acpi_build_tables(struct acpi_config *config)
*/
if ( config->hvminfo->nr_vcpus <= 15 && config->dsdt_15cpu)
{
- dsdt = mem_alloc(config->dsdt_15cpu_len, 16);
+ dsdt = ctxt->mem_ops.alloc(ctxt, config->dsdt_15cpu_len, 16);
if (!dsdt) goto oom;
memcpy(dsdt, config->dsdt_15cpu, config->dsdt_15cpu_len);
}
else
{
- dsdt = mem_alloc(config->dsdt_anycpu_len, 16);
+ dsdt = ctxt->mem_ops.alloc(ctxt, config->dsdt_anycpu_len, 16);
if (!dsdt) goto oom;
memcpy(dsdt, config->dsdt_anycpu, config->dsdt_anycpu_len);
}
@@ -549,7 +558,7 @@ void acpi_build_tables(struct acpi_config *config)
* compatible revision 1 FADT that is linked with the RSDT. Refer to:
* http://www.acpi.info/presentations/S01USMOBS169_OS%20new.ppt
*/
- fadt_10 = mem_alloc(sizeof(struct acpi_10_fadt), 16);
+ fadt_10 = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_10_fadt), 16);
if (!fadt_10) goto oom;
memcpy(fadt_10, &Fadt, sizeof(struct acpi_10_fadt));
fadt_10->header.length = sizeof(struct acpi_10_fadt);
@@ -560,7 +569,7 @@ void acpi_build_tables(struct acpi_config *config)
offsetof(struct acpi_header, checksum),
sizeof(struct acpi_10_fadt));
- fadt = mem_alloc(sizeof(struct acpi_20_fadt), 16);
+ fadt = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_fadt), 16);
if (!fadt) goto oom;
memcpy(fadt, &Fadt, sizeof(struct acpi_20_fadt));
fadt->dsdt = (unsigned long)dsdt;
@@ -571,14 +580,14 @@ void acpi_build_tables(struct acpi_config *config)
offsetof(struct acpi_header, checksum),
sizeof(struct acpi_20_fadt));
- nr_secondaries = construct_secondary_tables(secondary_tables,
+ nr_secondaries = construct_secondary_tables(ctxt, secondary_tables,
config, acpi_info);
if ( nr_secondaries < 0 )
goto oom;
- xsdt = mem_alloc(sizeof(struct acpi_20_xsdt)+
- sizeof(uint64_t)*nr_secondaries,
- 16);
+ xsdt = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_xsdt) +
+ sizeof(uint64_t) * nr_secondaries,
+ 16);
if (!xsdt) goto oom;
memcpy(xsdt, &Xsdt, sizeof(struct acpi_header));
xsdt->entry[0] = (unsigned long)fadt;
@@ -589,9 +598,9 @@ void acpi_build_tables(struct acpi_config *config)
offsetof(struct acpi_header, checksum),
xsdt->header.length);
- rsdt = mem_alloc(sizeof(struct acpi_20_rsdt)+
- sizeof(uint32_t)*nr_secondaries,
- 16);
+ rsdt = ctxt->mem_ops.alloc(ctxt, sizeof(struct acpi_20_rsdt) +
+ sizeof(uint32_t) * nr_secondaries,
+ 16);
if (!rsdt) goto oom;
memcpy(rsdt, &Rsdt, sizeof(struct acpi_header));
rsdt->entry[0] = (unsigned long)fadt_10;
@@ -617,7 +626,7 @@ void acpi_build_tables(struct acpi_config *config)
offsetof(struct acpi_20_rsdp, extended_checksum),
sizeof(struct acpi_20_rsdp));
- if ( !new_vm_gid(config, acpi_info) )
+ if ( !new_vm_gid(ctxt, config, acpi_info) )
goto oom;
return;
diff --git a/tools/firmware/hvmloader/acpi/libacpi.h
b/tools/firmware/hvmloader/acpi/libacpi.h
index b411a6e..35b6f47 100644
--- a/tools/firmware/hvmloader/acpi/libacpi.h
+++ b/tools/firmware/hvmloader/acpi/libacpi.h
@@ -40,6 +40,14 @@ struct acpi_numa {
const struct xen_vmemrange *vmemrange;
};
+struct acpi_ctxt {
+ struct acpi_mem_ops {
+ void *(*alloc)(struct acpi_ctxt *ctxt, uint32_t size, uint32_t align);
+ void (*free)(struct acpi_ctxt *ctxt, void *v, uint32_t size);
+ unsigned long (*v2p)(struct acpi_ctxt *ctxt, void *v);
+ } mem_ops;
+};
+
struct acpi_config {
const unsigned char *dsdt_anycpu;
unsigned int dsdt_anycpu_len;
@@ -76,7 +84,7 @@ struct acpi_config {
unsigned int rsdp;
};
-void acpi_build_tables(struct acpi_config *config);
+void acpi_build_tables(struct acpi_ctxt *ctxt, struct acpi_config *config);
#endif /* __LIBACPI_H__ */
diff --git a/tools/firmware/hvmloader/util.c b/tools/firmware/hvmloader/util.c
index b345576..3a423ab 100644
--- a/tools/firmware/hvmloader/util.c
+++ b/tools/firmware/hvmloader/util.c
@@ -866,10 +866,28 @@ static uint8_t battery_port_exists(void)
return (inb(0x88) == 0x1F);
}
+static unsigned long acpi_v2p(struct acpi_ctxt *ctxt, void *v)
+{
+ return virt_to_phys(v);
+}
+
+static void *acpi_mem_alloc(struct acpi_ctxt *ctxt,
+ uint32_t size, uint32_t align)
+{
+ return mem_alloc(size, align);
+}
+
+static void acpi_mem_free(struct acpi_ctxt *ctxt,
+ void *v, uint32_t size)
+{
+ /* ACPI builder currently doesn't free memory so this is just a stub */
+}
+
void hvmloader_acpi_build_tables(struct acpi_config *config,
unsigned int physical)
{
const char *s;
+ struct acpi_ctxt ctxt;
/* Allocate and initialise the acpi info area. */
mem_hole_populate_ram(ACPI_INFO_PHYSICAL_ADDRESS >> PAGE_SHIFT, 1);
@@ -934,7 +952,11 @@ void hvmloader_acpi_build_tables(struct acpi_config
*config,
config->rsdp = physical;
config->infop = ACPI_INFO_PHYSICAL_ADDRESS;
- acpi_build_tables(config);
+ ctxt.mem_ops.alloc = acpi_mem_alloc;
+ ctxt.mem_ops.free = acpi_mem_free;
+ ctxt.mem_ops.v2p = acpi_v2p;
+
+ acpi_build_tables(&ctxt, config);
hvm_param_set(HVM_PARAM_VM_GENERATION_ID_ADDR, config->vm_gid_addr);
}
--
1.8.3.1
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