search for: propagate_page_fault

...struct cpu_user_regs *regs) +{ + if ( guest ) + gdprintk(XENLOG_ERR, "reserved bit in page table entry: "); + else + dprintk(XENLOG_ERR, "reserved bit in page table entry: "); + show_page_walk(addr); + show_execution_state(regs); +} + void propagate_page_fault(unsigned long addr, u16 error_code) { struct trap_info *ti; @@ -852,6 +863,8 @@ void propagate_page_fault(unsigned long v->domain->domain_id, v->vcpu_id, error_code); show_page_walk(addr); } + else if ( unlikely(error_code & PFEC_reserved_bit) )...

1: correct LDT checks 2: add address validity check to guest_map_l1e() 3: use {rd,wr}{fs,gs}base when available 4: check for canonical address before doing page walks Signed-off-by: Jan Beulich <jbeulich@suse.com>

I would like to know approximately the overall execution flow when the guest O/S page fault - how is the page fault transfer to a page fault in the host O/S? Thanks. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

This patch series is a reworking of a series developed by Mukesh Rathor at Oracle. The entirety of the design and development was done by him; I have only reworked, reorganized, and simplified things in a way that I think makes more sense. The vast majority of the credit for this effort therefore goes to him. This version is labelled v13 because it is based on his most recent series, v11.

...act->pin -= (flags & GNTMAP_readonly) ? Index: xen/include/asm/mm.h =================================================================== --- xen.orig/include/asm/mm.h 2005-03-10 11:55:10.000000000 +0100 +++ xen/include/asm/mm.h 2005-03-12 14:39:26.000000000 +0100 @@ -340,7 +340,7 @@ void propagate_page_fault(unsigned long * Caller must own d''s BIGLOCK, is responsible for flushing the TLB, * and have already get_page''d */ int update_grant_va_mapping(unsigned long va, - unsigned long val, + l1_pgentry_t val,...

...06:22.000000000 +0200 +++ 2006-10-04/xen/arch/x86/traps.c 2006-10-04 15:11:03.000000000 +0200 @@ -57,6 +57,7 @@ #include <asm/i387.h> #include <asm/debugger.h> #include <asm/msr.h> +#include <asm/shared.h> #include <asm/x86_emulate.h> /* @@ -688,7 +689,7 @@ void propagate_page_fault(unsigned long struct trap_bounce *tb = &v->arch.trap_bounce; v->arch.guest_context.ctrlreg[2] = addr; - v->vcpu_info->arch.cr2 = addr; + arch_set_cr2(v, addr); /* Re-set error_code.user flag appropriately for the guest. */ error_code &= ~...

This series of patches fix the mistake for debug exception(#DB), overflow exception(#OF) and INT3(#BP), INTn instruction emulation. Introduce new function vmx_inject_sw_exception() which deliver the software excetion, software interrupt and privileged software exception. Split hardware exception as a seperate function(old function vmx_inject_hw_exception()). Also Passed down intruction length

Changes from v1: - Define new struct hvm_trap to represent information of trap, include instruction length. - Renames hvm_inject_exception to hvm_inject_trap. Then define a couple of wrappers around that function for existing callers, so that their parameter lists actually *shrink*. This series of patches fix the mistake for debug exception(#DB), overflow exception(#OF) and INT3(#BP),