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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2011-04-19 13:06:06 +0200 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2011-05-02 09:38:35 -0300 |
| commit | e41e0fc61ae776b9235380fe9570af31ea7bbc86 (patch) | |
| tree | 5f0b79d045b40305932220b44e4f60a7beac315f /target-i386/cpuid.c | |
| parent | 0c31b744f606d1c19b698041480eb195b8801747 (diff) | |
| download | qemu-e41e0fc61ae776b9235380fe9570af31ea7bbc86.zip | |
x86: Allow multiple cpu feature matches of lookup_feature
kvmclock is represented by two feature bits. Therefore, lookup_feature
needs to continue its search even after the first match. Enhance it
accordingly and switch to a bool return type at this chance.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'target-i386/cpuid.c')
| -rw-r--r-- | target-i386/cpuid.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c index 814d13e767..0ac592f0c1 100644 --- a/target-i386/cpuid.c +++ b/target-i386/cpuid.c @@ -182,20 +182,22 @@ static int altcmp(const char *s, const char *e, const char *altstr) } /* search featureset for flag *[s..e), if found set corresponding bit in - * *pval and return success, otherwise return zero + * *pval and return true, otherwise return false */ -static int lookup_feature(uint32_t *pval, const char *s, const char *e, - const char **featureset) +static bool lookup_feature(uint32_t *pval, const char *s, const char *e, + const char **featureset) { uint32_t mask; const char **ppc; + bool found = false; - for (mask = 1, ppc = featureset; mask; mask <<= 1, ++ppc) + for (mask = 1, ppc = featureset; mask; mask <<= 1, ++ppc) { if (*ppc && !altcmp(s, e, *ppc)) { *pval |= mask; - break; + found = true; } - return (mask ? 1 : 0); + } + return found; } static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features, |