This is a note to let you know that I've just added the patch titled
MIPS: KVM: Deliver guest interrupts after local_irq_disable()
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mips-kvm-deliver-guest-interrupts-after-local_irq_disable.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 044f0f03eca0110e1835b2ea038a484b93950328 Mon Sep 17 00:00:00 2001
From: James Hogan <[email protected]>
Date: Thu, 29 May 2014 10:16:32 +0100
Subject: MIPS: KVM: Deliver guest interrupts after local_irq_disable()
From: James Hogan <[email protected]>
commit 044f0f03eca0110e1835b2ea038a484b93950328 upstream.
When about to run the guest, deliver guest interrupts after disabling
host interrupts. This should prevent an hrtimer interrupt from being
handled after delivering guest interrupts, and therefore not delivering
the guest timer interrupt until after the next guest exit.
Signed-off-by: James Hogan <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Gleb Natapov <[email protected]>
Cc: [email protected]
Cc: Ralf Baechle <[email protected]>
Cc: [email protected]
Cc: Sanjay Lal <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/mips/kvm/kvm_mips.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/kvm/kvm_mips.c
+++ b/arch/mips/kvm/kvm_mips.c
@@ -418,11 +418,11 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_v
vcpu->mmio_needed = 0;
}
+ local_irq_disable();
/* Check if we have any exceptions/interrupts pending */
kvm_mips_deliver_interrupts(vcpu,
kvm_read_c0_guest_cause(vcpu->arch.cop0));
- local_irq_disable();
kvm_guest_enter();
r = __kvm_mips_vcpu_run(run, vcpu);
Patches currently in stable-queue which might be from [email protected] are
queue-3.14/mips-kvm-deliver-guest-interrupts-after-local_irq_disable.patch
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