Re: [PATCH] tools lib traceevent: update KVM plugin

From: Paolo Bonzini
Date: Fri Oct 09 2015 - 16:10:23 EST




On 01/10/2015 12:28, Paolo Bonzini wrote:
> The format of the role word has changed through the years and the
> plugin was never updated; some VMX exit reasons were missing too.
>
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> ---
> tools/lib/traceevent/plugin_kvm.c | 25 +++++++++++++++++--------
> 1 file changed, 17 insertions(+), 8 deletions(-)
>
> diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
> index 88fe83dff7cd..18536f756577 100644
> --- a/tools/lib/traceevent/plugin_kvm.c
> +++ b/tools/lib/traceevent/plugin_kvm.c
> @@ -124,7 +124,10 @@ static const char *disassemble(unsigned char *insn, int len, uint64_t rip,
> _ER(WBINVD, 54) \
> _ER(XSETBV, 55) \
> _ER(APIC_WRITE, 56) \
> - _ER(INVPCID, 58)
> + _ER(INVPCID, 58) \
> + _ER(PML_FULL, 62) \
> + _ER(XSAVES, 63) \
> + _ER(XRSTORS, 64)
>
> #define SVM_EXIT_REASONS \
> _ER(EXIT_READ_CR0, 0x000) \
> @@ -352,15 +355,18 @@ static int kvm_nested_vmexit_handler(struct trace_seq *s, struct pevent_record *
> union kvm_mmu_page_role {
> unsigned word;
> struct {
> - unsigned glevels:4;
> unsigned level:4;
> + unsigned cr4_pae:1;
> unsigned quadrant:2;
> - unsigned pad_for_nice_hex_output:6;
> unsigned direct:1;
> unsigned access:3;
> unsigned invalid:1;
> - unsigned cr4_pge:1;
> unsigned nxe:1;
> + unsigned cr0_wp:1;
> + unsigned smep_and_not_wp:1;
> + unsigned smap_and_not_wp:1;
> + unsigned pad_for_nice_hex_output:8;
> + unsigned smm:8;
> };
> };
>
> @@ -385,15 +391,18 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record,
> if (pevent_is_file_bigendian(event->pevent) ==
> pevent_is_host_bigendian(event->pevent)) {
>
> - trace_seq_printf(s, "%u/%u q%u%s %s%s %spge %snxe",
> + trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
> role.level,
> - role.glevels,
> role.quadrant,
> role.direct ? " direct" : "",
> access_str[role.access],
> role.invalid ? " invalid" : "",
> - role.cr4_pge ? "" : "!",
> - role.nxe ? "" : "!");
> + role.cr4_pae ? "" : "!",
> + role.nxe ? "" : "!",
> + role.cr0_wp ? "" : "!",
> + role.smep_and_not_wp ? " smep" : "",
> + role.smap_and_not_wp ? " smap" : "",
> + role.smm ? " smm" : "");
> } else
> trace_seq_printf(s, "WORD: %08x", role.word);
>
>

Ping? Arnaldo, ok to include this patch in my tree?

Paolo
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