From d3561b7fa0fb0fc583bab0eeda32bec9e4c4056d Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 7 Dec 2006 02:14:07 +0100 Subject: [PATCH] paravirt: header and stubs for paravirtualisation Create a paravirt.h header for all the critical operations which need to be replaced with hypervisor calls, and include that instead of defining native operations, when CONFIG_PARAVIRT. This patch does the dumbest possible replacement of paravirtualized instructions: calls through a "paravirt_ops" structure. Currently these are function implementations of native hardware: hypervisors will override the ops structure with their own variants. All the pv-ops functions are declared "fastcall" so that a specific register-based ABI is used, to make inlining assember easier. And: +From: Andy Whitcroft The paravirt ops introduce a 'weak' attribute onto memory_setup(). Code ordering leads to the following warnings on x86: arch/i386/kernel/setup.c:651: warning: weak declaration of `memory_setup' after first use results in unspecified behavior Move memory_setup() to avoid this. Signed-off-by: Rusty Russell Signed-off-by: Chris Wright Signed-off-by: Andi Kleen Cc: Jeremy Fitzhardinge Cc: Zachary Amsden Signed-off-by: Andrew Morton Signed-off-by: Andy Whitcroft --- include/asm-i386/setup.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/asm-i386/setup.h') diff --git a/include/asm-i386/setup.h b/include/asm-i386/setup.h index 2734909eff84..9930c5a355fc 100644 --- a/include/asm-i386/setup.h +++ b/include/asm-i386/setup.h @@ -70,6 +70,7 @@ extern unsigned char boot_params[PARAM_SIZE]; struct e820entry; char * __init machine_specific_memory_setup(void); +char *memory_setup(void); int __init copy_e820_map(struct e820entry * biosmap, int nr_map); int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map); -- cgit v1.2.2 From 7d1362c0d05b8543807ab403ac8ce813cab41fa4 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 6 Dec 2006 20:40:38 -0800 Subject: [PATCH] cleanup asm/setup.h userspace visibility Make the contents of the userspace asm/setup.h header consistent on all architectures: - export setup.h to userspace on all architectures - export only COMMAND_LINE_SIZE to userspace - frv: move COMMAND_LINE_SIZE from param.h - i386: remove duplicate COMMAND_LINE_SIZE from param.h - arm: - export ATAGs to userspace - change u8/u16/u32 to __u8/__u16/__u32 Signed-off-by: Adrian Bunk Acked-by: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/setup.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/asm-i386/setup.h') diff --git a/include/asm-i386/setup.h b/include/asm-i386/setup.h index 2734909eff84..c5b504bfbaad 100644 --- a/include/asm-i386/setup.h +++ b/include/asm-i386/setup.h @@ -6,6 +6,8 @@ #ifndef _i386_SETUP_H #define _i386_SETUP_H +#define COMMAND_LINE_SIZE 256 + #ifdef __KERNEL__ #include @@ -14,10 +16,8 @@ */ #define MAXMEM_PFN PFN_DOWN(MAXMEM) #define MAX_NONPAE_PFN (1 << 20) -#endif #define PARAM_SIZE 4096 -#define COMMAND_LINE_SIZE 256 #define OLD_CL_MAGIC_ADDR 0x90020 #define OLD_CL_MAGIC 0xA33F @@ -78,4 +78,6 @@ void __init add_memory_region(unsigned long long start, #endif /* __ASSEMBLY__ */ +#endif /* __KERNEL__ */ + #endif /* _i386_SETUP_H */ -- cgit v1.2.2