diff options
| author | Sheng Yang <sheng@linux.intel.com> | 2008-10-16 13:30:58 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2008-12-31 17:51:46 +0300 |
| commit | 6fe639792c7b8e462baeaac39ecc33541fd5da6e (patch) | |
| tree | 3a583ad3299455dafa949b76b825e6b763028a07 | |
| parent | 291f26bc0f89518ad7ee3207c09eb8a743ac8fcc (diff) | |
| download | linux-6fe639792c7b8e462baeaac39ecc33541fd5da6e.tar.xz | |
KVM: VMX: Move private memory slot position
PCI device assignment would map guest MMIO spaces as separate slot, so it is
possible that the device has more than 2 MMIO spaces and overwrite current
private memslot.
The patch move private memory slot to the top of userspace visible memory slots.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.h | 5 |
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index dae134fa09e7..7623eb7b68d5 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2513,7 +2513,7 @@ static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr) { int ret; struct kvm_userspace_memory_region tss_mem = { - .slot = 8, + .slot = TSS_PRIVATE_MEMSLOT, .guest_phys_addr = addr, .memory_size = PAGE_SIZE * 3, .flags = 0, diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h index 18598afe52eb..3db236c26fa4 100644 --- a/arch/x86/kvm/vmx.h +++ b/arch/x86/kvm/vmx.h @@ -338,8 +338,9 @@ enum vmcs_field { #define AR_RESERVD_MASK 0xfffe0f00 -#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT 9 -#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT 10 +#define TSS_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 0) +#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 1) +#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 2) #define VMX_NR_VPIDS (1 << 16) #define VMX_VPID_EXTENT_SINGLE_CONTEXT 1 |