[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v4 21/27] x86: move compat_set_trap_table along side the non-compat variant
Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx> --- xen/arch/x86/pv/traps.c | 45 ++++++++++++++++++++++++++++++++++++++ xen/arch/x86/x86_64/compat/traps.c | 45 -------------------------------------- 2 files changed, 45 insertions(+), 45 deletions(-) diff --git a/xen/arch/x86/pv/traps.c b/xen/arch/x86/pv/traps.c index f2556c7e4a..3dcb3f1877 100644 --- a/xen/arch/x86/pv/traps.c +++ b/xen/arch/x86/pv/traps.c @@ -87,6 +87,51 @@ long do_set_trap_table(XEN_GUEST_HANDLE_PARAM(const_trap_info_t) traps) return rc; } +int compat_set_trap_table(XEN_GUEST_HANDLE(trap_info_compat_t) traps) +{ + struct compat_trap_info cur; + struct trap_info *dst = current->arch.pv_vcpu.trap_ctxt; + long rc = 0; + + /* If no table is presented then clear the entire virtual IDT. */ + if ( guest_handle_is_null(traps) ) + { + memset(dst, 0, NR_VECTORS * sizeof(*dst)); + init_int80_direct_trap(current); + return 0; + } + + for ( ; ; ) + { + if ( copy_from_guest(&cur, traps, 1) ) + { + rc = -EFAULT; + break; + } + + if ( cur.address == 0 ) + break; + + fixup_guest_code_selector(current->domain, cur.cs); + + XLAT_trap_info(dst + cur.vector, &cur); + + if ( cur.vector == 0x80 ) + init_int80_direct_trap(current); + + guest_handle_add_offset(traps, 1); + + if ( hypercall_preempt_check() ) + { + rc = hypercall_create_continuation( + __HYPERVISOR_set_trap_table, "h", traps); + break; + } + } + + return rc; +} + void pv_inject_event(const struct x86_event *event) { struct vcpu *curr = current; diff --git a/xen/arch/x86/x86_64/compat/traps.c b/xen/arch/x86/x86_64/compat/traps.c index f485299c88..add4af3403 100644 --- a/xen/arch/x86/x86_64/compat/traps.c +++ b/xen/arch/x86/x86_64/compat/traps.c @@ -329,51 +329,6 @@ long compat_set_callbacks(unsigned long event_selector, return 0; } -int compat_set_trap_table(XEN_GUEST_HANDLE(trap_info_compat_t) traps) -{ - struct compat_trap_info cur; - struct trap_info *dst = current->arch.pv_vcpu.trap_ctxt; - long rc = 0; - - /* If no table is presented then clear the entire virtual IDT. */ - if ( guest_handle_is_null(traps) ) - { - memset(dst, 0, NR_VECTORS * sizeof(*dst)); - init_int80_direct_trap(current); - return 0; - } - - for ( ; ; ) - { - if ( copy_from_guest(&cur, traps, 1) ) - { - rc = -EFAULT; - break; - } - - if ( cur.address == 0 ) - break; - - fixup_guest_code_selector(current->domain, cur.cs); - - XLAT_trap_info(dst + cur.vector, &cur); - - if ( cur.vector == 0x80 ) - init_int80_direct_trap(current); - - guest_handle_add_offset(traps, 1); - - if ( hypercall_preempt_check() ) - { - rc = hypercall_create_continuation( - __HYPERVISOR_set_trap_table, "h", traps); - break; - } - } - - return rc; -} - /* * Local variables: * mode: C -- 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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