1
0
mirror of https://github.com/torvalds/linux.git synced 2024-12-19 09:32:32 +00:00
linux/arch/x86/kvm/vmx
Sebastian Andrzej Siewior c806e88734 x86/pkeys: Provide *pkru() helpers
Dave Hansen asked for __read_pkru() and __write_pkru() to be
symmetrical.

As part of the series __write_pkru() will read back the value and only
write it if it is different.

In order to make both functions symmetrical, move the function
containing only the opcode asm into a function called like the
instruction itself.

__write_pkru() will just invoke wrpkru() but in a follow-up patch will
also read back the value.

 [ bp: Convert asm opcode wrapper names to rd/wrpkru(). ]

Suggested-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Dave Hansen <dave.hansen@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: kvm ML <kvm@vger.kernel.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190403164156.19645-13-bigeasy@linutronix.de
2019-04-11 15:40:58 +02:00
..
capabilities.h
evmcs.c x86/kvm/hyper-v: nested_enable_evmcs() sets vmcs_version incorrectly 2019-01-25 19:11:37 +01:00
evmcs.h
nested.c kvm: nVMX: Add a vmentry check for HOST_SYSENTER_ESP and HOST_SYSENTER_EIP fields 2019-03-28 17:27:18 +01:00
nested.h
ops.h
pmu_intel.c
vmcs12.c
vmcs12.h
vmcs_shadow_fields.h
vmcs.h KVM: nVMX: Cache host_rsp on a per-VMCS basis 2019-02-12 13:12:22 +01:00
vmenter.S KVM: VMX: Reorder clearing of registers in the vCPU-run assembly flow 2019-02-20 22:48:18 +01:00
vmx.c x86/pkeys: Provide *pkru() helpers 2019-04-11 15:40:58 +02:00
vmx.h KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts 2019-03-28 17:29:00 +01:00