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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [IA64] hvm builder: more precisely use of memory size.
# HG changeset patch
# User Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
# Date 1222936077 -32400
# Node ID 0cc0252e74e1d6682f60ec146003a08aaaa90d34
# Parent c383ae0b803ddc970e35147301aeb92bf7863232
[IA64] hvm builder: more precisely use of memory size.
So far, VGA io size is ignored and memory size which assigned to
domain is smaller than what user specified by VGA io size.
This patch take VGA io size into consideration when memory population.
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
tools/libxc/ia64/xc_ia64_hvm_build.c | 77 ++++++++++++++++++-----------------
1 files changed, 41 insertions(+), 36 deletions(-)
diff -r c383ae0b803d -r 0cc0252e74e1 tools/libxc/ia64/xc_ia64_hvm_build.c
--- a/tools/libxc/ia64/xc_ia64_hvm_build.c Thu Oct 02 17:27:57 2008 +0900
+++ b/tools/libxc/ia64/xc_ia64_hvm_build.c Thu Oct 02 17:27:57 2008 +0900
@@ -90,8 +90,7 @@ static int build_hob(void* hob_buf, unsi
static int build_hob(void* hob_buf, unsigned long hob_buf_size,
unsigned long dom_mem_size, unsigned long vcpus,
unsigned long nvram_addr);
-static int load_hob(int xc_handle,uint32_t dom, void *hob_buf,
- unsigned long dom_mem_size);
+static int load_hob(int xc_handle,uint32_t dom, void *hob_buf);
static int
xc_ia64_build_hob(int xc_handle, uint32_t dom,
@@ -112,7 +111,7 @@ xc_ia64_build_hob(int xc_handle, uint32_
return -1;
}
- if (load_hob(xc_handle, dom, hob_buf, memsize) < 0) {
+ if (load_hob(xc_handle, dom, hob_buf) < 0) {
free(hob_buf);
PERROR("Could not load hob");
return -1;
@@ -240,8 +239,7 @@ err_out:
}
static int
-load_hob(int xc_handle, uint32_t dom, void *hob_buf,
- unsigned long dom_mem_size)
+load_hob(int xc_handle, uint32_t dom, void *hob_buf)
{
// hob_buf should be page aligned
int hob_size;
@@ -264,15 +262,18 @@ load_hob(int xc_handle, uint32_t dom, vo
GFW_HOB_START >> PAGE_SHIFT, nr_pages);
}
-#define MIN(x, y) ((x) < (y)) ? (x) : (y)
+#define MIN(x, y) (((x) < (y)) ? (x) : (y))
static int
add_mem_hob(void* hob_buf, unsigned long dom_mem_size)
{
hob_mem_t memhob;
- // less than 3G
+ // less than 3G accounting VGA RAM hole
memhob.start = 0;
- memhob.size = MIN(dom_mem_size, 0xC0000000);
+ if (dom_mem_size < VGA_IO_START)
+ memhob.size = dom_mem_size;
+ else
+ memhob.size = MIN(dom_mem_size + VGA_IO_SIZE, 0xC0000000);
if (hob_add(hob_buf, HOB_TYPE_MEM, &memhob, sizeof(memhob)) < 0)
return -1;
@@ -280,7 +281,7 @@ add_mem_hob(void* hob_buf, unsigned long
if (dom_mem_size > 0xC0000000) {
// 4G ~ 4G+remain
memhob.start = 0x100000000; //4G
- memhob.size = dom_mem_size - 0xC0000000;
+ memhob.size = dom_mem_size + VGA_IO_SIZE - 0xC0000000;
if (hob_add(hob_buf, HOB_TYPE_MEM, &memhob, sizeof(memhob)) < 0)
return -1;
}
@@ -819,9 +820,10 @@ xc_ia64_setup_memmap_info(int xc_handle,
md = (efi_memory_desc_t*)&memmap_info->memdesc;
xc_ia64_setup_md(md, 0, min(VGA_IO_START, dom_memsize));
md++;
- if (dom_memsize > (VGA_IO_START + VGA_IO_SIZE)) {
+
+ if (dom_memsize > VGA_IO_START) {
xc_ia64_setup_md(md, VGA_IO_START + VGA_IO_SIZE,
- min(MMIO_START, dom_memsize));
+ min(MMIO_START, dom_memsize + VGA_IO_SIZE));
md++;
}
xc_ia64_setup_md(md, IO_PAGE_START, IO_PAGE_START + IO_PAGE_SIZE);
@@ -840,8 +842,8 @@ xc_ia64_setup_memmap_info(int xc_handle,
md++;
xc_ia64_setup_md(md, GFW_START, GFW_START + GFW_SIZE);
md++;
- if (dom_memsize > MMIO_START) {
- xc_ia64_setup_md(md, 4 * MEM_G, dom_memsize + (1 * MEM_G));
+ if (dom_memsize + VGA_IO_SIZE > MMIO_START) {
+ xc_ia64_setup_md(md, 4 * MEM_G, dom_memsize + VGA_IO_SIZE + (1 *
MEM_G));
md++;
}
nr_mds = md - (efi_memory_desc_t*)&memmap_info->memdesc;
@@ -901,7 +903,8 @@ setup_guest(int xc_handle, uint32_t dom,
unsigned long memmap_info_num_pages;
unsigned long nvram_start = NVRAM_START, nvram_fd = 0;
int rc;
- long i;
+ unsigned long i;
+ unsigned long pfn;
const struct hvm_special_page {
int param;
xen_pfn_t pfn;
@@ -926,26 +929,28 @@ setup_guest(int xc_handle, uint32_t dom,
return -1;
}
- // Allocate pfn for normal memory
- for (i = 0; i < dom_memsize >> PAGE_SHIFT; i++)
- pfn_list[i] = i;
-
- // If normal memory > 3G. Reserve 3G ~ 4G for MMIO, GFW and others.
- for (i = (MMIO_START >> PAGE_SHIFT); i < (dom_memsize >> PAGE_SHIFT); i++)
- pfn_list[i] += ((1 * MEM_G) >> PAGE_SHIFT);
-
- // Allocate memory for VTI guest, up to VGA hole from 0xA0000-0xC0000.
- rc = xc_domain_memory_populate_physmap(xc_handle, dom,
- (nr_pages > VGA_START_PAGE) ?
- VGA_START_PAGE : nr_pages,
- 0, 0, &pfn_list[0]);
-
- // We're not likely to attempt to create a domain with less than
- // 640k of memory, but test for completeness
- if (rc == 0 && nr_pages > VGA_END_PAGE)
- rc = xc_domain_memory_populate_physmap(xc_handle, dom,
- nr_pages - VGA_END_PAGE,
- 0, 0, &pfn_list[VGA_END_PAGE]);
+ //
+ // Populate
+ // [0, VGA_IO_START) (VGA_IO_SIZE hole)
+ // [VGA_IO_START + VGA_IO_SIZE, MMIO_START) (1GB hole)
+ // [4GB, end)
+ //
+ i = 0;
+ for (pfn = 0;
+ pfn < MIN((dom_memsize >> PAGE_SHIFT), VGA_START_PAGE);
+ pfn++)
+ pfn_list[i++] = pfn;
+ for (pfn = VGA_END_PAGE;
+ pfn < (MIN(dom_memsize + VGA_IO_SIZE, MMIO_START) >> PAGE_SHIFT);
+ pfn++)
+ pfn_list[i++] = pfn;
+ for (pfn = ((4 * MEM_G) >> PAGE_SHIFT);
+ pfn < ((dom_memsize + VGA_IO_SIZE + 1 * MEM_G) >> PAGE_SHIFT);
+ pfn++)
+ pfn_list[i++] = pfn;
+
+ rc = xc_domain_memory_populate_physmap(xc_handle, dom, nr_pages, 0, 0,
+ &pfn_list[0]);
if (rc != 0) {
PERROR("Could not allocate normal memory for Vti guest.\n");
goto error_out;
@@ -983,8 +988,8 @@ setup_guest(int xc_handle, uint32_t dom,
domctl.u.arch_setup.flags = 0;
domctl.u.arch_setup.bp = 0;
domctl.u.arch_setup.maxmem = GFW_START + GFW_SIZE;
- if (dom_memsize > MMIO_START)
- domctl.u.arch_setup.maxmem = dom_memsize + 1 * MEM_G;
+ if (dom_memsize + VGA_IO_SIZE > MMIO_START)
+ domctl.u.arch_setup.maxmem = dom_memsize + VGA_IO_SIZE + 1 * MEM_G;
domctl.cmd = XEN_DOMCTL_arch_setup;
domctl.domain = (domid_t)dom;
if (xc_domctl(xc_handle, &domctl))
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