diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-03-24 14:47:08 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-03-29 20:57:18 +0200 |
| commit | a9f84fb7158fea60cbcadef5c0166fb22b469091 (patch) | |
| tree | e03690dda860792a09da362fefac6bda844d0910 /arch/x86/kernel/fpu | |
| parent | 4009a4ac82dd95b8cd2b62bd30019476983f0aff (diff) | |
x86/fpu: Remove redundant XCOMP_BV initialization
fpu_copy_uabi_to_guest_fpstate() initializes the XCOMP_BV field in the
XSAVE header. That's a leftover from the old KVM FPU buffer handling code.
Since
d69c1382e1b7 ("x86/kvm: Convert FPU handling to a single swap buffer")
KVM uses the FPU core allocation code, which initializes the XCOMP_BV
field already.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220324134623.408932232@linutronix.de
Diffstat (limited to 'arch/x86/kernel/fpu')
| -rw-r--r-- | arch/x86/kernel/fpu/core.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index 19821f027cb3..c049561f373a 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -415,9 +415,6 @@ int fpu_copy_uabi_to_guest_fpstate(struct fpu_guest *gfpu, const void *buf, xpkru = get_xsave_addr(&kstate->regs.xsave, XFEATURE_PKRU); *vpkru = xpkru->pkru; } - - /* Ensure that XCOMP_BV is set up for XSAVES */ - xstate_init_xcomp_bv(&kstate->regs.xsave, kstate->xfeatures); return 0; } EXPORT_SYMBOL_GPL(fpu_copy_uabi_to_guest_fpstate); |