[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen master] x86/mce: add compat struct checking for XEN_MC_inject_v2
commit 9d207b88ff208ad829822a4f1da9d8ab020ef263 Author: Jan Beulich <jbeulich@xxxxxxxx> AuthorDate: Fri Sep 4 11:06:56 2020 +0200 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Fri Sep 4 11:06:56 2020 +0200 x86/mce: add compat struct checking for XEN_MC_inject_v2 84e364f2eda2 ("x86: add CMCI software injection interface") merely made sure things would build, without any concern about things actually working: - despite the addition of xenctl_bitmap to xlat.lst, the resulting macro wasn't invoked anywhere (which would have lead to recognizing that the structure appeared to have no fully compatible layout, despite the use of a 64-bit handle), - the interface struct itself was neither added to xlat.lst (and the resulting macro then invoked) nor was any manual checking of individual fields added. Adjust compat header generation logic to retain XEN_GUEST_HANDLE_64(), which is intentionally layed out to be compatible between different size guests. Invoke the missing checking (implicitly through CHECK_mc). No change in the resulting generated code. Fixes: 84e364f2eda2 ("x86: add CMCI software injection interface") Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx> --- xen/arch/x86/cpu/mcheck/mce.c | 4 +++- xen/include/public/arch-x86/xen-mca.h | 3 ++- xen/include/xlat.lst | 1 + xen/tools/compat-build-header.py | 1 + xen/tools/compat-build-source.py | 2 +- 5 files changed, 8 insertions(+), 3 deletions(-) diff --git a/xen/arch/x86/cpu/mcheck/mce.c b/xen/arch/x86/cpu/mcheck/mce.c index fe9667e0c3..5ec16fab87 100644 --- a/xen/arch/x86/cpu/mcheck/mce.c +++ b/xen/arch/x86/cpu/mcheck/mce.c @@ -1312,10 +1312,12 @@ CHECK_FIELD_(struct, mc_fetch, fetch_id); CHECK_FIELD_(struct, mc_physcpuinfo, ncpus); # define CHECK_compat_mc_physcpuinfo struct mc_physcpuinfo -#define CHECK_compat_mc_inject_v2 struct mc_inject_v2 +# define xen_ctl_bitmap xenctl_bitmap + CHECK_mc; # undef CHECK_compat_mc_fetch # undef CHECK_compat_mc_physcpuinfo +# undef xen_ctl_bitmap # define xen_mc_info mc_info CHECK_mc_info; diff --git a/xen/include/public/arch-x86/xen-mca.h b/xen/include/public/arch-x86/xen-mca.h index 702998b0eb..628b79e22a 100644 --- a/xen/include/public/arch-x86/xen-mca.h +++ b/xen/include/public/arch-x86/xen-mca.h @@ -429,6 +429,7 @@ struct xen_mc_inject_v2 { uint32_t flags; xenctl_bitmap_t cpumap; }; +typedef struct xen_mc_inject_v2 xen_mc_inject_v2_t; #endif struct xen_mc { @@ -441,7 +442,7 @@ struct xen_mc { xen_mc_msrinject_t mc_msrinject; xen_mc_mceinject_t mc_mceinject; #if defined(__XEN__) || defined(__XEN_TOOLS__) - struct xen_mc_inject_v2 mc_inject_v2; + xen_mc_inject_v2_t mc_inject_v2; #endif } u; }; diff --git a/xen/include/xlat.lst b/xen/include/xlat.lst index 20d4dccce6..1eb28dbe66 100644 --- a/xen/include/xlat.lst +++ b/xen/include/xlat.lst @@ -44,6 +44,7 @@ ? mcinfo_recovery arch-x86/xen-mca.h ! mc_fetch arch-x86/xen-mca.h ? mc_info arch-x86/xen-mca.h +? mc_inject_v2 arch-x86/xen-mca.h ? mc_mceinject arch-x86/xen-mca.h ? mc_msrinject arch-x86/xen-mca.h ? mc_notifydomain arch-x86/xen-mca.h diff --git a/xen/tools/compat-build-header.py b/xen/tools/compat-build-header.py index ca706ce353..065d3b1b6e 100755 --- a/xen/tools/compat-build-header.py +++ b/xen/tools/compat-build-header.py @@ -19,6 +19,7 @@ pats = [ [ r"(^|[^\w])xen_?(\w*)_compat_t([^\w]|$$)", r"\1compat_\2_t\3" ], [ r"(^|[^\w])XEN_?", r"\1COMPAT_" ], [ r"(^|[^\w])Xen_?", r"\1Compat_" ], + [ r"(^|[^\w])COMPAT_HANDLE_64\(", r"\1XEN_GUEST_HANDLE_64(" ], [ r"(^|[^\w])long([^\w]|$$)", r"\1int\2" ] ]; diff --git a/xen/tools/compat-build-source.py b/xen/tools/compat-build-source.py index fc10c7063f..2bcaf27d05 100755 --- a/xen/tools/compat-build-source.py +++ b/xen/tools/compat-build-source.py @@ -10,7 +10,7 @@ pats = [ [ r"^\s*#\s*define\s+([A-Z_]*_GUEST_HANDLE)", r"#define HIDE_\1" ], [ r"^\s*#\s*define\s+([a-z_]*_guest_handle)", r"#define hide_\1" ], [ r"^\s*#\s*define\s+(u?int64)_aligned_t\s.*aligned.*", r"typedef \1_T __attribute__((aligned(4))) \1_compat_T;" ], - [ r"XEN_GUEST_HANDLE(_[0-9A-Fa-f]+)?", r"COMPAT_HANDLE" ], + [ r"XEN_GUEST_HANDLE", r"COMPAT_HANDLE" ], ]; xlatf = open('xlat.lst', 'r') -- generated by git-patchbot for /home/xen/git/xen.git#master
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