diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2018-06-30 08:08:23 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-07-02 15:41:18 +0200 |
| commit | fe441054bb3f0c75ff23335790342c0408e11c3a (patch) | |
| tree | 4c33bcd58c69d2a1dc66ba3f10d98e3108976195 /target/i386/svm.h | |
| parent | 76b004d10da09bb77a4343edf7b98b2d662fb4f2 (diff) | |
target-i386: Add NPT support
This implements NPT suport for SVM by hooking into
x86_cpu_handle_mmu_fault where it reads the stage-1 page table. Whether
we need to perform this 2nd stage translation, and how, is decided
during vmrun and stored in hflags2, along with nested_cr3 and
nested_pg_mode.
As get_hphys performs a direct cpu_vmexit in case of NPT faults, we need
retaddr in that function. To avoid changing the signature of
cpu_handle_mmu_fault, this passes the value from tlb_fill to get_hphys
via the CPU state.
This was tested successfully via the Jailhouse hypervisor.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Message-Id: <567473a0-6005-5843-4c73-951f476085ca@web.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/svm.h')
| -rw-r--r-- | target/i386/svm.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/target/i386/svm.h b/target/i386/svm.h index 922c8fd39c..23a3a040b8 100644 --- a/target/i386/svm.h +++ b/target/i386/svm.h @@ -130,6 +130,20 @@ #define SVM_CR0_SELECTIVE_MASK (1 << 3 | 1) /* TS and MP */ +#define SVM_NPT_ENABLED (1 << 0) + +#define SVM_NPT_PAE (1 << 0) +#define SVM_NPT_LMA (1 << 1) +#define SVM_NPT_NXE (1 << 2) + +#define SVM_NPTEXIT_P (1ULL << 0) +#define SVM_NPTEXIT_RW (1ULL << 1) +#define SVM_NPTEXIT_US (1ULL << 2) +#define SVM_NPTEXIT_RSVD (1ULL << 3) +#define SVM_NPTEXIT_ID (1ULL << 4) +#define SVM_NPTEXIT_GPA (1ULL << 32) +#define SVM_NPTEXIT_GPT (1ULL << 33) + struct QEMU_PACKED vmcb_control_area { uint16_t intercept_cr_read; uint16_t intercept_cr_write; |