From cd3b70f5d4d82f85d1e1d6e822f38ae098cf7c72 Mon Sep 17 00:00:00 2001 From: Carsten Otte Date: Mon, 17 May 2010 10:00:04 +0200 Subject: [S390] virtualization aware cpu measurement Use the SPP instruction to set a tag on entry to / exit of the virtual machine context. This allows the cpu measurement facility to distinguish the samples from the host and the different guests. Signed-off-by: Carsten Otte --- arch/s390/include/asm/lowcore.h | 3 ++- arch/s390/include/asm/setup.h | 5 ++++- 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/s390/include/asm') diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 2c02d46c3588..0f97ef2d92ac 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -267,7 +267,8 @@ struct _lowcore { __u64 vdso_per_cpu_data; /* 0x0358 */ __u64 machine_flags; /* 0x0360 */ __u64 ftrace_func; /* 0x0368 */ - __u8 pad_0x0370[0x0380-0x0370]; /* 0x0370 */ + __u64 sie_hook; /* 0x0370 */ + __u64 cmf_hpp; /* 0x0378 */ /* Interrupt response block. */ __u8 irb[64]; /* 0x0380 */ diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 9ab6bd3a65d1..25e831d58e1e 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -2,7 +2,7 @@ * include/asm-s390/setup.h * * S390 version - * Copyright IBM Corp. 1999,2006 + * Copyright IBM Corp. 1999,2010 */ #ifndef _ASM_S390_SETUP_H @@ -72,6 +72,7 @@ extern unsigned int user_mode; #define MACHINE_FLAG_HPAGE (1UL << 10) #define MACHINE_FLAG_PFMF (1UL << 11) #define MACHINE_FLAG_LPAR (1UL << 12) +#define MACHINE_FLAG_SPP (1UL << 13) #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) @@ -88,6 +89,7 @@ extern unsigned int user_mode; #define MACHINE_HAS_MVCOS (0) #define MACHINE_HAS_HPAGE (0) #define MACHINE_HAS_PFMF (0) +#define MACHINE_HAS_SPP (0) #else /* __s390x__ */ #define MACHINE_HAS_IEEE (1) #define MACHINE_HAS_CSP (1) @@ -97,6 +99,7 @@ extern unsigned int user_mode; #define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS) #define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE) #define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF) +#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP) #endif /* __s390x__ */ #define ZFCPDUMP_HSA_SIZE (32UL<<20) -- cgit v1.2.3