search for: has_err

...how we change from using the kernel code segment to using diff -r 55fdd7fa62b7 drivers/lguest/interrupts_and_traps.c --- a/drivers/lguest/interrupts_and_traps.c Mon Aug 06 16:38:47 2007 +1000 +++ b/drivers/lguest/interrupts_and_traps.c Wed Aug 08 13:22:53 2007 +1000 @@ -195,13 +195,16 @@ static int has_err(unsigned int trap) /* deliver_trap() returns true if it could deliver the trap. */ int deliver_trap(struct lguest *lg, unsigned int num) { - u32 lo = lg->idt[num].a, hi = lg->idt[num].b; + /* Trap numbers are always 8 bit, but we set an impossible trap number + * for traps inside the Swit...

...how we change from using the kernel code segment to using diff -r 55fdd7fa62b7 drivers/lguest/interrupts_and_traps.c --- a/drivers/lguest/interrupts_and_traps.c Mon Aug 06 16:38:47 2007 +1000 +++ b/drivers/lguest/interrupts_and_traps.c Wed Aug 08 13:22:53 2007 +1000 @@ -195,13 +195,16 @@ static int has_err(unsigned int trap) /* deliver_trap() returns true if it could deliver the trap. */ int deliver_trap(struct lguest *lg, unsigned int num) { - u32 lo = lg->idt[num].a, hi = lg->idt[num].b; + /* Trap numbers are always 8 bit, but we set an impossible trap number + * for traps inside the Swit...

...Jul 21 11:12:01 2007 +1000 +++ b/drivers/lguest/interrupts_and_traps.c Sun Jul 22 20:47:51 2007 +1000 @@ -107,6 +107,7 @@ void maybe_do_interrupt(struct lguest *l clear_bit(irq, lg->irqs_pending); set_guest_interrupt(lg, idt->a, idt->b, 0); } + write_timestamp(lg); } static int has_err(unsigned int trap) diff -r 144835834edd drivers/lguest/lg.h --- a/drivers/lguest/lg.h Sat Jul 21 11:12:01 2007 +1000 +++ b/drivers/lguest/lg.h Sun Jul 22 20:49:03 2007 +1000 @@ -243,6 +243,7 @@ unsigned long get_dma_buffer(struct lgue /* hypercalls.c: */ void do_hypercalls(struct lguest *lg); +...

...Jul 21 11:12:01 2007 +1000 +++ b/drivers/lguest/interrupts_and_traps.c Sun Jul 22 20:47:51 2007 +1000 @@ -107,6 +107,7 @@ void maybe_do_interrupt(struct lguest *l clear_bit(irq, lg->irqs_pending); set_guest_interrupt(lg, idt->a, idt->b, 0); } + write_timestamp(lg); } static int has_err(unsigned int trap) diff -r 144835834edd drivers/lguest/lg.h --- a/drivers/lguest/lg.h Sat Jul 21 11:12:01 2007 +1000 +++ b/drivers/lguest/lg.h Sun Jul 22 20:49:03 2007 +1000 @@ -243,6 +243,7 @@ unsigned long get_dma_buffer(struct lgue /* hypercalls.c: */ void do_hypercalls(struct lguest *lg); +...

Hi all, Gratefully-received recent feedback from CC'd was applied to excellent effect (and the advice from Matt Mackall about my personal appearance is best unrequited). The patch is split in 5 parts to correspond with the 9 parts Andrew sent out before, but here's the summary: 1) Sparse (thanks Christoph Hellwig): - lguest_const can be static now - lguest.c should include

Hi all, Gratefully-received recent feedback from CC'd was applied to excellent effect (and the advice from Matt Mackall about my personal appearance is best unrequited). The patch is split in 5 parts to correspond with the 9 parts Andrew sent out before, but here's the summary: 1) Sparse (thanks Christoph Hellwig): - lguest_const can be static now - lguest.c should include

...gt; 8) & 0xF; +} + +static int idt_present(u32 lo, u32 hi) +{ + return (hi & 0x8000); +} + +static void push_guest_stack(struct lguest *lg, u32 __user **gstack, u32 val) +{ + lgwrite_u32(lg, (u32)--(*gstack), val); +} + +static void set_guest_interrupt(struct lguest *lg, u32 lo, u32 hi, int has_err) +{ + u32 __user *gstack; + u32 eflags, ss, irq_enable; + + /* If they want a ring change, we use new stack and push old ss/esp */ + if ((lg->regs->ss&0x3) != GUEST_PL) { + gstack = (u32 __user *)guest_pa(lg, lg->esp1); + ss = lg->ss1; + push_guest_stack(lg, &gstack, lg->r...

...gt; 8) & 0xF; +} + +static int idt_present(u32 lo, u32 hi) +{ + return (hi & 0x8000); +} + +static void push_guest_stack(struct lguest *lg, u32 __user **gstack, u32 val) +{ + lgwrite_u32(lg, (u32)--(*gstack), val); +} + +static void set_guest_interrupt(struct lguest *lg, u32 lo, u32 hi, int has_err) +{ + u32 __user *gstack; + u32 eflags, ss, irq_enable; + + /* If they want a ring change, we use new stack and push old ss/esp */ + if ((lg->regs->ss&0x3) != GUEST_PL) { + gstack = (u32 __user *)guest_pa(lg, lg->esp1); + ss = lg->ss1; + push_guest_stack(lg, &gstack, lg->r...

...ct lguest *lg, u32 __user **gstack, u32 val) -{ - lgwrite_u32(lg, (u32)--(*gstack), val); +static void push_guest_stack(struct lguest *lg, unsigned long *gstack, u32 val) +{ + *gstack -= 4; + lgwrite_u32(lg, *gstack, val); } static void set_guest_interrupt(struct lguest *lg, u32 lo, u32 hi, int has_err) { - u32 __user *gstack; + unsigned long gstack; u32 eflags, ss, irq_enable; /* If they want a ring change, we use new stack and push old ss/esp */ if ((lg->regs->ss&0x3) != GUEST_PL) { - gstack = (u32 __user *)guest_pa(lg, lg->esp1); + gstack = guest_pa(lg, lg->esp1);...

...ct lguest *lg, u32 __user **gstack, u32 val) -{ - lgwrite_u32(lg, (u32)--(*gstack), val); +static void push_guest_stack(struct lguest *lg, unsigned long *gstack, u32 val) +{ + *gstack -= 4; + lgwrite_u32(lg, *gstack, val); } static void set_guest_interrupt(struct lguest *lg, u32 lo, u32 hi, int has_err) { - u32 __user *gstack; + unsigned long gstack; u32 eflags, ss, irq_enable; /* If they want a ring change, we use new stack and push old ss/esp */ if ((lg->regs->ss&0x3) != GUEST_PL) { - gstack = (u32 __user *)guest_pa(lg, lg->esp1); + gstack = guest_pa(lg, lg->esp1);...

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

...512; + + regs->rsp = pop_guest_stack(vcpu, &gstack); + regs->ss = pop_guest_stack(vcpu, &gstack); + + /* restore the rax reg, since it was used by the guest to do the hcall */ + regs->rax = vcpu->rax; + + return; +} + +int reflect_trap(struct lguest_vcpu *vcpu, int trap_num, int has_err) +{ + struct lguest_regs *regs = &vcpu->regs; + u64 __user *gstack; + u64 rflags, irq_enable; + u64 offset; + + if (!vcpu->interrupt[trap_num]) { + printk("Not yet registered trap handler for %d\n",trap_num); + return 0; + } + + /* save off the rax reg */ + vcpu->rax = regs...

...512; + + regs->rsp = pop_guest_stack(vcpu, &gstack); + regs->ss = pop_guest_stack(vcpu, &gstack); + + /* restore the rax reg, since it was used by the guest to do the hcall */ + regs->rax = vcpu->rax; + + return; +} + +int reflect_trap(struct lguest_vcpu *vcpu, int trap_num, int has_err) +{ + struct lguest_regs *regs = &vcpu->regs; + u64 __user *gstack; + u64 rflags, irq_enable; + u64 offset; + + if (!vcpu->interrupt[trap_num]) { + printk("Not yet registered trap handler for %d\n",trap_num); + return 0; + } + + /* save off the rax reg */ + vcpu->rax = regs...

Hi all, These are the patches I'm planning to submit for 2.6.24. Comments gratefully accepted. Along with the usual cleanups and improvements are Jes' de-i386-ification patches, and a new "virtio" mechanism designed to be shared with KVM (and hopefully other hypervisors). Cheers, Rusty. Documentation/lguest/Makefile | 30 Documentation/lguest/lguest.c

Hi all, These are the patches I'm planning to submit for 2.6.24. Comments gratefully accepted. Along with the usual cleanups and improvements are Jes' de-i386-ification patches, and a new "virtio" mechanism designed to be shared with KVM (and hopefully other hypervisors). Cheers, Rusty. Documentation/lguest/Makefile | 30 Documentation/lguest/lguest.c