search for: lguest_time_irq

The following patches are the latest update of the TSC and hrtimer patches I posted on 29/03. Rusty's original TSC patch has been resynced to the latest lguest repo, as has the hrtimer patch, which also incorporates feedback from Jeremy & Rusty: - Change clock event hrtimer to absolute time. 'now' is captured in the host during the hypercall. - Propagate -ETIME back to the

The following patches are the latest update of the TSC and hrtimer patches I posted on 29/03. Rusty's original TSC patch has been resynced to the latest lguest repo, as has the hrtimer patch, which also incorporates feedback from Jeremy & Rusty: - Change clock event hrtimer to absolute time. 'now' is captured in the host during the hypercall. - Propagate -ETIME back to the

Lguest currently requires a TSC, which breaks older machines and Matt Mackall who boots the host with "notsc". In addition, there is no good solution to changing TSC speeds (informing all the guests about the TSC impending change before it happens would be a great deal of code and have issues with disobedient guests). This patch makes the host determine if the TSC is both constant and

Lguest currently requires a TSC, which breaks older machines and Matt Mackall who boots the host with "notsc". In addition, there is no good solution to changing TSC speeds (informing all the guests about the TSC impending change before it happens would be a great deal of code and have issues with disobedient guests). This patch makes the host determine if the TSC is both constant and

...struct clocksource lguest_clock = .name = "lguest", .rating = 400, .read = lguest_clock_read, + .mask = CLOCKSOURCE_MASK(64), + .mult = 1, }; static unsigned long long lguest_sched_clock(void) @@ -430,22 +441,17 @@ static void lguest_time_init(void) { set_irq_handler(0, lguest_time_irq); - /* We use the TSC if the Host tells us we can, otherwise a dumb - * jiffies-based clock. */ + /* We use the TSC if the Host tells us we can, otherwise we use + * the timestamp the Host sets. */ if (lguest_data.tsc_khz) { lguest_clock.shift = 22; lguest_clock.mult = clocksource_khz2m...

...struct clocksource lguest_clock = .name = "lguest", .rating = 400, .read = lguest_clock_read, + .mask = CLOCKSOURCE_MASK(64), + .mult = 1, }; static unsigned long long lguest_sched_clock(void) @@ -430,22 +441,17 @@ static void lguest_time_init(void) { set_irq_handler(0, lguest_time_irq); - /* We use the TSC if the Host tells us we can, otherwise a dumb - * jiffies-based clock. */ + /* We use the TSC if the Host tells us we can, otherwise we use + * the timestamp the Host sets. */ if (lguest_data.tsc_khz) { lguest_clock.shift = 22; lguest_clock.mult = clocksource_khz2m...

...R) { + set_intr_gate(vector, interrupt[i]); + set_irq_chip_and_handler(i, &lguest_irq_controller, + handle_level_irq); + } + } + irq_ctx_init(smp_processor_id()); +} + +static unsigned long lguest_get_wallclock(void) +{ + return hcall(LHCALL_GET_WALLCLOCK, 0, 0, 0); +} + +static void lguest_time_irq(unsigned int irq, struct irq_desc *desc) +{ + do_timer(hcall(LHCALL_TIMER_READ, 0, 0, 0)); + update_process_times(user_mode_vm(get_irq_regs())); +} + +static void lguest_time_init(void) +{ + set_irq_handler(0, lguest_time_irq); + hcall(LHCALL_TIMER_READ, 0, 0, 0); + enable_lguest_irq(0); +} + +stat...

...R) { + set_intr_gate(vector, interrupt[i]); + set_irq_chip_and_handler(i, &lguest_irq_controller, + handle_level_irq); + } + } + irq_ctx_init(smp_processor_id()); +} + +static unsigned long lguest_get_wallclock(void) +{ + return hcall(LHCALL_GET_WALLCLOCK, 0, 0, 0); +} + +static void lguest_time_irq(unsigned int irq, struct irq_desc *desc) +{ + do_timer(hcall(LHCALL_TIMER_READ, 0, 0, 0)); + update_process_times(user_mode_vm(get_irq_regs())); +} + +static void lguest_time_init(void) +{ + set_irq_handler(0, lguest_time_irq); + hcall(LHCALL_TIMER_READ, 0, 0, 0); + enable_lguest_irq(0); +} + +stat...

As promised to Andrew, and with much thanks to Andi Kleen for feedback, this is the new series of lguest patches. Main change is the move to drivers/lguest (for future non-i386 expansion), but lots of cleanups driven by Andi's feedback and the documentation effort (which made me examine every line of code). It's not perfect, but it's definitely useful. Cheers, Rusty. List of

As promised to Andrew, and with much thanks to Andi Kleen for feedback, this is the new series of lguest patches. Main change is the move to drivers/lguest (for future non-i386 expansion), but lots of cleanups driven by Andi's feedback and the documentation effort (which made me examine every line of code). It's not perfect, but it's definitely useful. Cheers, Rusty. List of

The netfilter code had very good documentation: the Netfilter Hacking HOWTO. Noone ever read it. So this time I'm trying something different, using a bit of Knuthiness. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- Documentation/lguest/extract | 58 +++++++++++++++++++++++++++++++++ Documentation/lguest/lguest.c | 9 +++-- drivers/lguest/Makefile

The netfilter code had very good documentation: the Netfilter Hacking HOWTO. Noone ever read it. So this time I'm trying something different, using a bit of Knuthiness. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- Documentation/lguest/extract | 58 +++++++++++++++++++++++++++++++++ Documentation/lguest/lguest.c | 9 +++-- drivers/lguest/Makefile

The netfilter code had very good documentation: the Netfilter Hacking HOWTO. Noone ever read it. So this time I'm trying something different, using a bit of Knuthiness. Start with drivers/lguest/README. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- Documentation/lguest/extract | 58 +++++++++++++++++++++++++++++++++ Documentation/lguest/lguest.c | 9

The netfilter code had very good documentation: the Netfilter Hacking HOWTO. Noone ever read it. So this time I'm trying something different, using a bit of Knuthiness. Start with drivers/lguest/README. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- Documentation/lguest/extract | 58 +++++++++++++++++++++++++++++++++ Documentation/lguest/lguest.c | 9

...+{ + return lguest_data.cr2; +} + +static unsigned long lguest_read_cr3(void) +{ + return current_cr3; +} + +/* Used to enable/disable PGE, but we don't care. */ +static unsigned long lguest_read_cr4(void) +{ + return 0; +} + +static void lguest_write_cr4(unsigned long val) +{ +} + +static void lguest_time_irq(unsigned int irq, struct irq_desc *desc) +{ + do_timer(hcall(LHCALL_TIMER_READ, 0, 0, 0)); + update_process_times(user_mode_vm(get_irq_regs())); +} + +static void disable_lguest_irq(unsigned int irq) +{ + set_bit(irq, lguest_data.interrupts); +} + +static void enable_lguest_irq(unsigned int irq) +{...

...+{ + return lguest_data.cr2; +} + +static unsigned long lguest_read_cr3(void) +{ + return current_cr3; +} + +/* Used to enable/disable PGE, but we don't care. */ +static unsigned long lguest_read_cr4(void) +{ + return 0; +} + +static void lguest_write_cr4(unsigned long val) +{ +} + +static void lguest_time_irq(unsigned int irq, struct irq_desc *desc) +{ + do_timer(hcall(LHCALL_TIMER_READ, 0, 0, 0)); + update_process_times(user_mode_vm(get_irq_regs())); +} + +static void disable_lguest_irq(unsigned int irq) +{ + set_bit(irq, lguest_data.interrupts); +} + +static void enable_lguest_irq(unsigned int irq) +{...

Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the way. Well, the lguest64 port is still not ready to display, but before Rusty makes too many changes I would like this in upstream so I don't have to keep repeating my changes :-) So this patch series moves lguest32 out of the way for other archs. -- Steve

Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the way. Well, the lguest64 port is still not ready to display, but before Rusty makes too many changes I would like this in upstream so I don't have to keep repeating my changes :-) So this patch series moves lguest32 out of the way for other archs. -- Steve

[ Changes since last version. - Move lg.h to include/asm instead (suggested by Rusty Russel) - All steps of the series compiles (suggested by Stephen Rothwell) - Better ifdef header naming (suggested by Stephen Rothwell) - Added Andi Kleen to CC (forgot to on V1) ] Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the

[ Changes since last version. - Move lg.h to include/asm instead (suggested by Rusty Russel) - All steps of the series compiles (suggested by Stephen Rothwell) - Better ifdef header naming (suggested by Stephen Rothwell) - Added Andi Kleen to CC (forgot to on V1) ] Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the