diff options
Diffstat (limited to 'physmap.c')
| -rw-r--r-- | physmap.c | 41 |
1 files changed, 40 insertions, 1 deletions
@@ -28,7 +28,7 @@ #include "flash.h" /* Do we need any file access or ioctl for physmap or MSR? */ -#if !defined(__DJGPP__) +#if !defined(__DJGPP__) && !defined(__LIBPAYLOAD__) #include <sys/stat.h> #include <fcntl.h> #include <errno.h> @@ -104,6 +104,31 @@ void physunmap(void *virt_addr, size_t len) __dpmi_free_physical_address_mapping(&mi); } +#elif defined(__LIBPAYLOAD__) +#include <arch/virtual.h> + +#define MEM_DEV "" + +void *sys_physmap(unsigned long phys_addr, size_t len) +{ + return (void*)phys_to_virt(phys_addr); +} + +#define sys_physmap_rw_uncached sys_physmap +#define sys_physmap_ro_cached sys_physmap + +void physunmap(void *virt_addr, size_t len) +{ +} + +int setup_cpu_msr(int cpu) +{ + return 0; +} + +void cleanup_cpu_msr(void) +{ +} #elif defined(__DARWIN__) #include <DirectIO/darwinio.h> @@ -453,6 +478,20 @@ void cleanup_cpu_msr(void) { // Nothing, yet. } +#elif defined(__LIBPAYLOAD__) +msr_t libpayload_rdmsr(int addr) +{ + msr_t msr; + unsigned long long val = _rdmsr(addr); + msr.lo = val & 0xffffffff; + msr.hi = val >> 32; + return msr; +} + +int libpayload_wrmsr(int addr, msr_t msr) +{ + _wrmsr(addr, msr.lo | ((unsigned long long)msr.hi << 32)); +} #else msr_t rdmsr(int addr) { |
