search for: time_init_hook

The time_init_hook in paravirt-ops no longer functions in the correct manner after the integration of the hrtimers code. The problem is that now the call path for time initialization is: time_init : late_time_init = hpet_time_init; late_time_init -> hpet_time_init: setup_pit_timer (BAD)...

The time_init_hook in paravirt-ops no longer functions in the correct manner after the integration of the hrtimers code. The problem is that now the call path for time initialization is: time_init : late_time_init = hpet_time_init; late_time_init -> hpet_time_init: setup_pit_timer (BAD)...

...Oliveira Costa <gcosta@redhat.com> Index: clean-start/include/asm-x86_64/time.h =================================================================== --- /dev/null +++ clean-start/include/asm-x86_64/time.h @@ -0,0 +1,18 @@ +#ifndef _ASM_X86_64_TIME_H +#define _ASM_X86_64_TIME_H + +inline void time_init_hook(void); +unsigned long do_get_cmos_time(void); +void do_set_rtc_mmss(unsigned long nowtime); + +#ifdef CONFIG_PARAVIRT +#include <asm/paravirt.h> +#else /* !CONFIG_PARAVIRT */ + +#define get_wallclock() do_get_cmos_time() +#define set_wallclock(x) do_set_rtc_mmss(x) +#define do_time_init() tim...

...Oliveira Costa <gcosta@redhat.com> Index: clean-start/include/asm-x86_64/time.h =================================================================== --- /dev/null +++ clean-start/include/asm-x86_64/time.h @@ -0,0 +1,18 @@ +#ifndef _ASM_X86_64_TIME_H +#define _ASM_X86_64_TIME_H + +inline void time_init_hook(void); +unsigned long do_get_cmos_time(void); +void do_set_rtc_mmss(unsigned long nowtime); + +#ifdef CONFIG_PARAVIRT +#include <asm/paravirt.h> +#else /* !CONFIG_PARAVIRT */ + +#define get_wallclock() do_get_cmos_time() +#define set_wallclock(x) do_set_rtc_mmss(x) +#define do_time_init() tim...

...oks.h +++ b/include/asm-i386/arch_hooks.h @@ -18,7 +18,6 @@ extern irqreturn_t timer_interrupt(int i /* these are the defined hooks */ extern void intr_init_hook(void); -extern void pre_intr_init_hook(void); extern void pre_setup_arch_hook(void); extern void trap_init_hook(void); extern void time_init_hook(void);

...oks.h +++ b/include/asm-i386/arch_hooks.h @@ -18,7 +18,6 @@ extern irqreturn_t timer_interrupt(int i /* these are the defined hooks */ extern void intr_init_hook(void); -extern void pre_intr_init_hook(void); extern void pre_setup_arch_hook(void); extern void trap_init_hook(void); extern void time_init_hook(void);

...mp;rtc_lock, flags); + return retval; +} #ifdef CONFIG_CPU_FREQ /* Frequency scaling support. Adjust the TSC based timer when the cpu frequency @@ -876,6 +886,11 @@ static struct irqaction irq0 = { timer_interrupt, IRQF_DISABLED, CPU_MASK_NONE, "timer", NULL, NULL }; +inline void time_init_hook() +{ + setup_irq(0, &irq0); +} + void __init time_init(void) { if (nohpet) @@ -915,7 +930,7 @@ void __init time_init(void) vxtime.tsc_quot = (USEC_PER_MSEC << US_SCALE) / cpu_khz; vxtime.last_tsc = get_cycles_sync(); set_cyc2ns_scale(cpu_khz); - setup_irq(0, &irq0); + do_tim...

...mp;rtc_lock, flags); + return retval; +} #ifdef CONFIG_CPU_FREQ /* Frequency scaling support. Adjust the TSC based timer when the cpu frequency @@ -876,6 +886,11 @@ static struct irqaction irq0 = { timer_interrupt, IRQF_DISABLED, CPU_MASK_NONE, "timer", NULL, NULL }; +inline void time_init_hook() +{ + setup_irq(0, &irq0); +} + void __init time_init(void) { if (nohpet) @@ -915,7 +930,7 @@ void __init time_init(void) vxtime.tsc_quot = (USEC_PER_MSEC << US_SCALE) / cpu_khz; vxtime.last_tsc = get_cycles_sync(); set_cyc2ns_scale(cpu_khz); - setup_irq(0, &irq0); + do_tim...

...} + +/** + * trap_init_hook - initialise system specific traps + * + * Description: + * Called as the final act of trap_init(). + **/ +void __init trap_init_hook(void) +{ +} + +static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL}; + +/** + * time_init_hook - do any specific initialisations for the system timer. + * + * Description: + * Must plug the system timer interrupt source at HZ into the IRQ listed + * in irq_vectors.h:TIMER_IRQ + **/ +void __init time_init_hook(void) +{ + setup_irq(0, &irq0); +} Index: linux-2.6.16-rc5/arch/i386/mach-vmi/s...

...} + +/** + * trap_init_hook - initialise system specific traps + * + * Description: + * Called as the final act of trap_init(). + **/ +void __init trap_init_hook(void) +{ +} + +static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL}; + +/** + * time_init_hook - do any specific initialisations for the system timer. + * + * Description: + * Must plug the system timer interrupt source at HZ into the IRQ listed + * in irq_vectors.h:TIMER_IRQ + **/ +void __init time_init_hook(void) +{ + setup_irq(0, &irq0); +} Index: linux-2.6.16-rc5/arch/i386/mach-vmi/s...

...6,6 +317,8 @@ void __init trap_init_hook(void) static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL}; +static struct irqaction vmi_irq0 = { vmi_timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "VMI-alarm", NULL, NULL}; + /** * time_init_hook - do any specific initialisations for the system timer. * @@ -315,5 +328,8 @@ static struct irqaction irq0 = { timer_ **/ void __init time_init_hook(void) { - setup_irq(0, &irq0); + if (vmi_timer_used()) + setup_irq(0, &vmi_irq0); + else + setup_irq(0, &irq0); } Index: linux-2...

...6,6 +317,8 @@ void __init trap_init_hook(void) static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL}; +static struct irqaction vmi_irq0 = { vmi_timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "VMI-alarm", NULL, NULL}; + /** * time_init_hook - do any specific initialisations for the system timer. * @@ -315,5 +328,8 @@ static struct irqaction irq0 = { timer_ **/ void __init time_init_hook(void) { - setup_irq(0, &irq0); + if (vmi_timer_used()) + setup_irq(0, &vmi_irq0); + else + setup_irq(0, &irq0); } Index: linux-2...

The following patches introduce the core infrastructure needed to paravirtualize the 32-bit x86 Linux kernel. This is done by moving virtualization sensitive insn's or code paths to a function table, paravirt_ops. This structure can be populated with hypervisor specific calls or native stubs and currently support running on bare metal, VMI, Xen, or Lhype. These patches apply to

The following patches introduce the core infrastructure needed to paravirtualize the 32-bit x86 Linux kernel. This is done by moving virtualization sensitive insn's or code paths to a function table, paravirt_ops. This structure can be populated with hypervisor specific calls or native stubs and currently support running on bare metal, VMI, Xen, or Lhype. These patches apply to

...RS_PER_PGD, + + .vsyscall_page = &__vsyscall_0, + .patch = native_patch, + .banner = default_banner, + .arch_setup = native_nop, + .memory_setup = setup_memory_region, + .syscall_init = x86_64_syscall_init, + .get_wallclock = do_get_cmos_time, + .set_wallclock = do_set_rtc_mmss, + .time_init = time_init_hook, + .init_IRQ = native_init_IRQ, + + .cpuid = native_cpuid, + .get_debugreg = native_get_debugreg, + .set_debugreg = native_set_debugreg, + .clts = native_clts, + .read_cr0 = native_read_cr0, + .write_cr0 = native_write_cr0, + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .read_cr3...

...RS_PER_PGD, + + .vsyscall_page = &__vsyscall_0, + .patch = native_patch, + .banner = default_banner, + .arch_setup = native_nop, + .memory_setup = setup_memory_region, + .syscall_init = x86_64_syscall_init, + .get_wallclock = do_get_cmos_time, + .set_wallclock = do_set_rtc_mmss, + .time_init = time_init_hook, + .init_IRQ = native_init_IRQ, + + .cpuid = native_cpuid, + .get_debugreg = native_get_debugreg, + .set_debugreg = native_set_debugreg, + .clts = native_clts, + .read_cr0 = native_read_cr0, + .write_cr0 = native_write_cr0, + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .read_cr3...

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths