diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/mach-generic/spaces.h | 9 | ||||
| -rw-r--r-- | arch/mips/include/asm/processor.h | 5 | ||||
| -rw-r--r-- | arch/mips/include/asm/uaccess.h | 11 | ||||
| -rw-r--r-- | arch/mips/kernel/binfmt_elfo32.c | 4 | ||||
| -rw-r--r-- | arch/mips/kernel/cevt-r4k.c | 4 | ||||
| -rw-r--r-- | arch/mips/kernel/traps.c | 7 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-time.c | 15 |
7 files changed, 52 insertions, 3 deletions
diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h index 73d717a75cb0..5b2f2e68e57f 100644 --- a/arch/mips/include/asm/mach-generic/spaces.h +++ b/arch/mips/include/asm/mach-generic/spaces.h @@ -20,14 +20,21 @@ #endif #ifdef CONFIG_32BIT - +#ifdef CONFIG_KVM_GUEST +#define CAC_BASE _AC(0x40000000, UL) +#else #define CAC_BASE _AC(0x80000000, UL) +#endif #define IO_BASE _AC(0xa0000000, UL) #define UNCAC_BASE _AC(0xa0000000, UL) #ifndef MAP_BASE +#ifdef CONFIG_KVM_GUEST +#define MAP_BASE _AC(0x60000000, UL) +#else #define MAP_BASE _AC(0xc0000000, UL) #endif +#endif /* * Memory above this physical address will be considered highmem. diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 2a5fa7abb346..71686c897dea 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -44,11 +44,16 @@ extern unsigned int vced_count, vcei_count; #define SPECIAL_PAGES_SIZE PAGE_SIZE #ifdef CONFIG_32BIT +#ifdef CONFIG_KVM_GUEST +/* User space process size is limited to 1GB in KVM Guest Mode */ +#define TASK_SIZE 0x3fff8000UL +#else /* * User space process size: 2GB. This is hardcoded into a few places, * so don't change it unless you know what you are doing. */ #define TASK_SIZE 0x7fff8000UL +#endif #ifdef __KERNEL__ #define STACK_TOP_MAX TASK_SIZE diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h index bd87e36bf26a..b46caab453a5 100644 --- a/arch/mips/include/asm/uaccess.h +++ b/arch/mips/include/asm/uaccess.h @@ -23,7 +23,11 @@ */ #ifdef CONFIG_32BIT -#define __UA_LIMIT 0x80000000UL +#ifdef CONFIG_KVM_GUEST +#define __UA_LIMIT 0x40000000UL +#else +#define __UA_LIMIT 0x80000000UL +#endif #define __UA_ADDR ".word" #define __UA_LA "la" @@ -55,8 +59,13 @@ extern u64 __ua_limit; * address in this range it's the process's problem, not ours :-) */ +#ifdef CONFIG_KVM_GUEST +#define KERNEL_DS ((mm_segment_t) { 0x80000000UL }) +#define USER_DS ((mm_segment_t) { 0xC0000000UL }) +#else #define KERNEL_DS ((mm_segment_t) { 0UL }) #define USER_DS ((mm_segment_t) { __UA_LIMIT }) +#endif #define VERIFY_READ 0 #define VERIFY_WRITE 1 diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c index 556a4357d7fc..97c5a1668e53 100644 --- a/arch/mips/kernel/binfmt_elfo32.c +++ b/arch/mips/kernel/binfmt_elfo32.c @@ -48,7 +48,11 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; __res; \ }) +#ifdef CONFIG_KVM_GUEST +#define TASK32_SIZE 0x3fff8000UL +#else #define TASK32_SIZE 0x7fff8000UL +#endif #undef ELF_ET_DYN_BASE #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c index 07b847d77f5d..fd75d7144524 100644 --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c @@ -118,6 +118,10 @@ int c0_compare_int_usable(void) unsigned int delta; unsigned int cnt; +#ifdef CONFIG_KVM_GUEST + return 1; +#endif + /* * IP7 already pending? Try to clear it by acking the timer. */ diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index a200b5bdbb87..59351e5d0591 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1713,7 +1713,12 @@ void __init trap_init(void) ebase = (unsigned long) __alloc_bootmem(size, 1 << fls(size), 0); } else { - ebase = CKSEG0; +#ifdef CONFIG_KVM_GUEST +#define KVM_GUEST_KSEG0 0x40000000 + ebase = KVM_GUEST_KSEG0; +#else + ebase = CKSEG0; +#endif if (cpu_has_mips_r2) ebase += (read_c0_ebase() & 0x3ffff000); } diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c index a144b89cf9ba..bc6ac00c0d57 100644 --- a/arch/mips/mti-malta/malta-time.c +++ b/arch/mips/mti-malta/malta-time.c @@ -76,6 +76,21 @@ static void __init estimate_frequencies(void) unsigned int count, start; unsigned int giccount = 0, gicstart = 0; +#if defined (CONFIG_KVM_GUEST) && defined (CONFIG_KVM_HOST_FREQ) + unsigned int prid = read_c0_prid() & 0xffff00; + + /* + * XXXKYMA: hardwire the CPU frequency to Host Freq/4 + */ + count = (CONFIG_KVM_HOST_FREQ * 1000000) >> 3; + if ((prid != (PRID_COMP_MIPS | PRID_IMP_20KC)) && + (prid != (PRID_COMP_MIPS | PRID_IMP_25KF))) + count *= 2; + + mips_hpt_frequency = count; + return; +#endif + local_irq_save(flags); /* Start counter exactly on falling edge of update flag. */ |