diff options
Diffstat (limited to 'xen/arch/x86/hvm/hvm.c')
| -rw-r--r-- | xen/arch/x86/hvm/hvm.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c index 150b0ec460..bf807bf7c8 100644 --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -2310,11 +2310,7 @@ void hvm_task_switch( rc = hvm_copy_from_guest_virt( &tss, prev_tr.base, sizeof(tss), PFEC_page_present); - if ( rc == HVMCOPY_bad_gva_to_gfn ) - goto out; - if ( rc == HVMCOPY_gfn_paged_out ) - goto out; - if ( rc == HVMCOPY_gfn_shared ) + if ( rc != HVMCOPY_okay ) goto out; eflags = regs->eflags; @@ -2359,13 +2355,11 @@ void hvm_task_switch( rc = hvm_copy_from_guest_virt( &tss, tr.base, sizeof(tss), PFEC_page_present); - if ( rc == HVMCOPY_bad_gva_to_gfn ) - goto out; - if ( rc == HVMCOPY_gfn_paged_out ) - goto out; - /* Note: this could be optimised, if the callee functions knew we want RO - * access */ - if ( rc == HVMCOPY_gfn_shared ) + /* + * Note: The HVMCOPY_gfn_shared case could be optimised, if the callee + * functions knew we want RO access. + */ + if ( rc != HVMCOPY_okay ) goto out; |