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| author | Sam Bobroff <sam.bobroff@au1.ibm.com> | 2017-09-26 16:47:04 +1000 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-10-03 17:58:16 +0200 |
| commit | 2fb1e946450a4fef74bb72f360555f7760d816f0 (patch) | |
| tree | a2cd3794460739e885ca9456c2e3c81f3213a357 /lib/atomic64_test.c | |
| parent | 9e66317d3c92ddaab330c125dfe9d06eee268aff (diff) | |
KVM: PPC: Book3S: Fix server always zero from kvmppc_xive_get_xive()
In KVM's XICS-on-XIVE emulation, kvmppc_xive_get_xive() returns the
value of state->guest_server as "server". However, this value is not
set by it's counterpart kvmppc_xive_set_xive(). When the guest uses
this interface to migrate interrupts away from a CPU that is going
offline, it sees all interrupts as belonging to CPU 0, so they are
left assigned to (now) offline CPUs.
This patch removes the guest_server field from the state, and returns
act_server in it's place (that is, the CPU actually handling the
interrupt, which may differ from the one requested).
Fixes: 5af50993850a ("KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller")
Cc: stable@vger.kernel.org
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'lib/atomic64_test.c')
0 files changed, 0 insertions, 0 deletions