xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] KVM: MU: Special treatment for shadow pae root pages

Browse Source 
Since we're not going to cache the pae-mode shadow root pages, allocate a
single pae shadow that will hold the four lower-level pages, which will act as
roots.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Avi Kivity
2007-01-05 16:36:40 -08:00
committed by Linus Torvalds
parent ac79c978f1
commit 17ac10ad2b
2 changed files with 82 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/kvm/kvm.h
View File

@@ -123,6 +123,8 @@ struct kvm_mmu {
hpa_t root_hpa;
int root_level;
int shadow_root_level;
u64 *pae_root;
};
struct kvm_guest_debug {
@@ -548,19 +550,4 @@ static inline u32 get_rdx_init_val(void)
#define TSS_REDIRECTION_SIZE (256 / 8)
#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
#ifdef CONFIG_X86_64
/*
* When emulating 32-bit mode, cr3 is only 32 bits even on x86_64. Therefore
* we need to allocate shadow page tables in the first 4GB of memory, which
* happens to fit the DMA32 zone.
*/
#define GFP_KVM_MMU (GFP_KERNEL | __GFP_DMA32)
#else
#define GFP_KVM_MMU GFP_KERNEL
#endif
#endif