diff options
| author | Radim Krčmář <rkrcmar@redhat.com> | 2015-10-30 18:36:24 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-11-04 18:24:31 +0300 |
| commit | 7a036a6f670f63b32c5ee126425f9109271ca13f (patch) | |
| tree | 1d05bde35800c3d4668e8e4a099777cdf14fb7a2 /arch/x86/include | |
| parent | 2da29bccc5045ea10c70cb3a69be777768fd0b66 (diff) | |
| download | linux-7a036a6f670f63b32c5ee126425f9109271ca13f.tar.xz | |
KVM: x86: add read_phys to x86_emulate_ops
We want to read the physical memory when emulating RSM.
X86EMUL_IO_NEEDED is returned on all errors for consistency with other
helpers.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_emulate.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index e16466ec473c..e9cd7befcb76 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -112,6 +112,16 @@ struct x86_emulate_ops { struct x86_exception *fault); /* + * read_phys: Read bytes of standard (non-emulated/special) memory. + * Used for descriptor reading. + * @addr: [IN ] Physical address from which to read. + * @val: [OUT] Value read from memory. + * @bytes: [IN ] Number of bytes to read from memory. + */ + int (*read_phys)(struct x86_emulate_ctxt *ctxt, unsigned long addr, + void *val, unsigned int bytes); + + /* * write_std: Write bytes of standard (non-emulated/special) memory. * Used for descriptor writing. * @addr: [IN ] Linear address to which to write. |