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openSUSE:Evergreen:11.1:kernel-2.6.32
xen
19171-xenctx.patch
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File 19171-xenctx.patch of Package xen
# HG changeset patch # User Keir Fraser <keir.fraser@citrix.com> # Date 1233836244 0 # Node ID 5c1308e2ece3b6d589f39375cbef8239640ac262 # Parent 2358b9fcd51b376c5f1f641a34e1bf3cd427b55d xenctx support for 64-bit HVM guests Now that we can easily find EFER.LMA, xenctx can detect 64-bit HVM VCPUs Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com> Index: xen-3.3.1-testing/tools/xentrace/xenctx.c =================================================================== --- xen-3.3.1-testing.orig/tools/xentrace/xenctx.c +++ xen-3.3.1-testing/tools/xentrace/xenctx.c @@ -26,6 +26,7 @@ #include "xenctrl.h" #include <xen/foreign/x86_32.h> #include <xen/foreign/x86_64.h> +#include <xen/hvm/save.h> int xc_handle = 0; int domid = 0; @@ -788,23 +789,29 @@ static void dump_ctx(int vcpu) #if defined(__i386__) || defined(__x86_64__) { - struct xen_domctl domctl; - memset(&domctl, 0, sizeof domctl); - domctl.domain = domid; - domctl.cmd = XEN_DOMCTL_get_address_size; - if (xc_domctl(xc_handle, &domctl) == 0) - ctxt_word_size = guest_word_size = domctl.u.address_size.size / 8; if (dominfo.hvm) { + struct hvm_hw_cpu cpuctx; xen_capabilities_info_t xen_caps = ""; + if (xc_domain_hvm_getcontext_partial( + xc_handle, domid, HVM_SAVE_CODE(CPU), + vcpu, &cpuctx, sizeof cpuctx) != 0) { + perror("xc_domain_hvm_getcontext_partial"); + exit(-1); + } + guest_word_size = (cpuctx.msr_efer & 0x400) ? 8 : 4; + /* HVM guest context records are always host-sized */ if (xc_version(xc_handle, XENVER_capabilities, &xen_caps) != 0) { perror("xc_version"); exit(-1); } - /* HVM guest context records are always host-sized */ ctxt_word_size = (strstr(xen_caps, "xen-3.0-x86_64")) ? 8 : 4; - /* XXX For now we can't tell whether a HVM guest is in long - * XXX mode; eventually fix this here and in xc_pagetab.c */ - guest_word_size = 4; + } else { + struct xen_domctl domctl; + memset(&domctl, 0, sizeof domctl); + domctl.domain = domid; + domctl.cmd = XEN_DOMCTL_get_address_size; + if (xc_domctl(xc_handle, &domctl) == 0) + ctxt_word_size = guest_word_size = domctl.u.address_size.size / 8; } } #endif
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