Date: Tue, 3 Jul 2012 14:56:12 GMT From: John Baldwin <jhb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 213850 for review Message-ID: <201207031456.q63EuCkX039358@skunkworks.freebsd.org>
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http://p4web.freebsd.org/@@213850?ac=10 Change 213850 by jhb@jhb_ralph on 2012/07/03 14:55:34 More test cases. Affected files ... .. //depot/projects/smpng/sys/modules/x86dis/x86dis.c#2 edit Differences ... ==== //depot/projects/smpng/sys/modules/x86dis/x86dis.c#2 (text+ko) ==== @@ -25,6 +25,28 @@ } static __inline void +xsaveopt(char *addr, uint64_t mask) +{ + uint32_t low, hi; + + low = mask; + hi = mask >> 32; + /* xsaveopt (%rdi) */ + __asm __volatile(".byte 0x0f,0xae,0x37" : : + "a" (low), "d" (hi), "D" (addr) : "memory"); +} + +static __inline uint64_t +xgetbv(uint32_t reg) +{ + uint32_t low, high; + + __asm __volatile(".byte 0x0f,0x01,0xd0" : "=a" (low), "=d" (high) : + "c" (reg)); + return (low | ((uint64_t)high << 32)); +} + +static __inline void xsetbv(uint32_t reg, uint64_t val) { uint32_t low, hi; @@ -35,13 +57,54 @@ "c" (reg), "a" (low), "d" (hi)); } +static __inline uint64_t +rdtscp(uint32_t *aux) +{ + uint32_t low, high; + + __asm __volatile("rdtscp" : "=a" (low), "=d" (high), "=c" (*aux)); + return (low | ((uint64_t)high << 32)); +} + +static __inline void +vmcall(void) +{ + + __asm __volatile(".byte 0x0f,0x01,0xc1"); +} + +static __inline void +vmlaunch(void) +{ + + __asm __volatile(".byte 0x0f,0x01,0xc2"); +} + +static __inline void +vmresume(void) +{ + + __asm __volatile(".byte 0x0f,0x01,0xc3"); +} + extern void isn_list(char *addr, uint32_t reg, uint64_t mask, uint64_t val); void isn_list(char *addr, uint32_t reg, uint64_t mask, uint64_t val) { + uint32_t aux; + + /* + * XXX: More to add? + */ + rdtscp(&aux); + xsaveopt(addr, mask); xrstor(addr, mask); xsave(addr, mask); + xgetbv(reg); xsetbv(reg, val); + vmcall(); + vmlaunch(); + vmresume(); }
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