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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-04-01 16:20:30 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-04-01 16:20:30 +0100 |
| commit | d3a7711f0c72e302bdbc5a2a1f0fa2649a6b6858 (patch) | |
| tree | 1a0c83f73a82a6f4e5ec4aabd134ea99dd99b7b2 /xen/arch/x86/hvm/intercept.c | |
| parent | ea78378d2cb685b6fa3897a91435c36235b75446 (diff) | |
| download | xen-d3a7711f0c72e302bdbc5a2a1f0fa2649a6b6858.tar.gz xen-d3a7711f0c72e302bdbc5a2a1f0fa2649a6b6858.tar.bz2 xen-d3a7711f0c72e302bdbc5a2a1f0fa2649a6b6858.zip | |
x86: hvm_*io_intercept() should only update p->count if X86EMUL_OKAY.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Diffstat (limited to 'xen/arch/x86/hvm/intercept.c')
| -rw-r--r-- | xen/arch/x86/hvm/intercept.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/xen/arch/x86/hvm/intercept.c b/xen/arch/x86/hvm/intercept.c index 107b87d2f7..1a1f24c7f6 100644 --- a/xen/arch/x86/hvm/intercept.c +++ b/xen/arch/x86/hvm/intercept.c @@ -100,8 +100,11 @@ static int hvm_mmio_access(struct vcpu *v, } } - if ( (p->count = i) != 0 ) + if ( i != 0 ) + { + p->count = i; rc = X86EMUL_OKAY; + } return rc; } @@ -165,8 +168,11 @@ static int process_portio_intercept(portio_action_t action, ioreq_t *p) } } - if ( (p->count = i) != 0 ) + if ( i != 0 ) + { + p->count = i; rc = X86EMUL_OKAY; + } return rc; } |