x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d

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The last missing piece to having vmx_l1d_flush() take interrupts after
VMEXIT into account is to set the kvm_cpu_l1tf_flush_l1d per-cpu flag on
irq entry.

Issue calls to kvm_set_cpu_l1tf_flush_l1d() from entering_irq(),
ipi_entering_ack_irq(), smp_reschedule_interrupt() and
uv_bau_message_interrupt().

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Nicolai Stange 2018-07-29 13:06:04 +02:00 • committed by Thomas Gleixner

parent 447ae31667

commit ffcba43ff6

3 changed files with 5 additions and 0 deletions

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3

arch/x86/include/asm/apic.h

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1

arch/x86/kernel/smp.c

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1

arch/x86/platform/uv/tlb_uv.c

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