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author | Laurent Vivier <lvivier@redhat.com> | 2018-03-02 11:51:56 +0100 |
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committer | Paul Mackerras <paulus@ozlabs.org> | 2018-03-03 19:28:34 +1100 |
commit | 61bd0f66ff92d5ce765ff9850fd3cbfec773c560 (patch) | |
tree | e537610f5576aba85a1980fd085f15ca12e6b00b /arch/mips/lantiq | |
parent | debd574f4195e205ba505b25e19b2b797f4bcd94 (diff) | |
download | linux-61bd0f66ff92d5ce765ff9850fd3cbfec773c560.tar.bz2 |
KVM: PPC: Book3S HV: Fix guest time accounting with VIRT_CPU_ACCOUNTING_GEN
Since commit 8b24e69fc47e ("KVM: PPC: Book3S HV: Close race with testing
for signals on guest entry"), if CONFIG_VIRT_CPU_ACCOUNTING_GEN is set, the
guest time is not accounted to guest time and user time, but instead to
system time.
This is because guest_enter()/guest_exit() are called while interrupts
are disabled and the tick counter cannot be updated between them.
To fix that, move guest_exit() after local_irq_enable(), and as
guest_enter() is called with IRQ disabled, call guest_enter_irqoff()
instead.
Fixes: 8b24e69fc47e ("KVM: PPC: Book3S HV: Close race with testing for signals on guest entry")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/mips/lantiq')
0 files changed, 0 insertions, 0 deletions