On 01/05/2010 12:12 PM, Sheng Yang wrote:
Signed-off-by: Sheng Yang<sheng@xxxxxxxxxxxxxxx>
---
arch/x86/include/asm/vmx.h | 1 +
arch/x86/kvm/mmu.c | 8 +++++---
arch/x86/kvm/vmx.c | 11 ++++++++++-
3 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 713ed9a..43f1e9b 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -364,6 +364,7 @@ enum vmcs_field {
#define VMX_EPTP_UC_BIT (1ull<< 8)
#define VMX_EPTP_WB_BIT (1ull<< 14)
#define VMX_EPT_2MB_PAGE_BIT (1ull<< 16)
+#define VMX_EPT_1GB_PAGE_BIT (1ull<< 17)
Can you share when this feature will be available in hardware?
static int vmx_get_lpage_level(void)
{
- return 2; /* PT_DIRECTORY_LEVEL */
+ if (enable_ept&& !cpu_has_vmx_ept_1g_page())
+ return 2; /* PT_DIRECTORY_LEVEL */
+ else
+ /* For shadow and EPT supported 1GB page */
+ return 3; /* PT_PDPE_LEVEL */
}
Why not use the defines instead of numbers? It will reduce change when
we change PT_*_LEVEL to be zero based instead of one based.
Patchset looks good; second patch should go into .33 and stable, no?
--
error compiling committee.c: too many arguments to function
--
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