Commit 2cf9953b authored by Aurelien Jarno's avatar Aurelien Jarno Committed by Alexander Graf
Browse files

s390x/misc_helper.c: wrap s390_virtio_hypercall in BQL 



s390_virtio_hypercall can trigger IO events and interrupts, most notably
when using virtio-ccw devices.

Reviewed-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <f4bug@amsat.org>
Fixes: 278f5e98 ("s390x/misc_helper.c: wrap IO instructions in BQL")
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent 601b9a90

target/s390x/misc_helper.c

+2 −0
Original line number Diff line number Diff line
@@ -288,7 +288,9 @@ void HELPER(diag)(CPUS390XState *env, uint32_t r1, uint32_t r3, uint32_t num) 
    switch (num) {

    case 0x500:

        /* KVM hypercall */

        qemu_mutex_lock_iothread();

        r = s390_virtio_hypercall(env);

        qemu_mutex_unlock_iothread();

        break;

    case 0x44:

        /* yield */