search for: lcall

...These > products, which make heavy use of RPy have been used in a production > environments for two years. > > New features in 0.3.3 > ------------------------------- > > o Now works with R 1.8.X > > o Windows version merged into the Unix source tree > > o Added lcall() method for calling R functions using a list of (name, > value) pairs for the parameters. This is works around the python > (mis-)feature of using unordered python dictionaries for named > parameters, resulting in the loss of order for named parameters. > > o All reported bu...

...These > products, which make heavy use of RPy have been used in a production > environments for two years. > > New features in 0.3.3 > ------------------------------- > > o Now works with R 1.8.X > > o Windows version merged into the Unix source tree > > o Added lcall() method for calling R functions using a list of (name, > value) pairs for the parameters. This is works around the python > (mis-)feature of using unordered python dictionaries for named > parameters, resulting in the loss of order for named parameters. > > o All reported bu...

...long return_code_compat; /* %eax */ unsigned long address; /* %ebx */ unsigned long length; /* %ecx */ unsigned long entry; /* %edx */ @@ -72,13 +73,14 @@ static unsigned long bios32_service(unsigned long service) local_irq_save(flags); __asm__("lcall *(%%edi); cld" - : "=a" (return_code), + : "=a" (return_code_compat), "=b" (address), "=c" (length), "=d" (entry) : "0" (service), "1" (0), "...

...p_bios(u16 func "pushl %%esi\n\t" "pushl %%ds\n\t" "pushl %%es\n\t" - "pushl %%fs\n\t" - "pushl %%gs\n\t" "pushfl\n\t" "movl %%esp, pnp_bios_fault_esp\n\t" "movl $1f, pnp_bios_fault_eip\n\t" "lcall %5,%6\n\t" "1:popfl\n\t" - "popl %%gs\n\t" - "popl %%fs\n\t" "popl %%es\n\t" "popl %%ds\n\t" "popl %%esi\n\t" @@ -142,8 +135,8 @@ static inline u16 call_pnp_bios(u16 func ); spin_unlock_irqrestore(&pnp_bio...

...p_bios(u16 func "pushl %%esi\n\t" "pushl %%ds\n\t" "pushl %%es\n\t" - "pushl %%fs\n\t" - "pushl %%gs\n\t" "pushfl\n\t" "movl %%esp, pnp_bios_fault_esp\n\t" "movl $1f, pnp_bios_fault_eip\n\t" "lcall %5,%6\n\t" "1:popfl\n\t" - "popl %%gs\n\t" - "popl %%fs\n\t" "popl %%es\n\t" "popl %%ds\n\t" "popl %%esi\n\t" @@ -142,8 +135,8 @@ static inline u16 call_pnp_bios(u16 func ); spin_unlock_irqrestore(&pnp_bio...

...s); + + /* Set the trap number to 256 (impossible value). If we fault while + * switching to the Guest (bad segment registers or bug), this will + * cause us to abort the Guest. */ + lg->regs->trapnum = 256; /* Now: we push the "eflags" register on the stack, then do an "lcall". * This is 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 +...

...s); + + /* Set the trap number to 256 (impossible value). If we fault while + * switching to the Guest (bad segment registers or bug), this will + * cause us to abort the Guest. */ + lg->regs->trapnum = 256; /* Now: we push the "eflags" register on the stack, then do an "lcall". * This is 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 +...

...p;desc, sizeof(desc)) != 0) { perror("modify_ldt"); } printf("code base is 0x%08x\n", (unsigned)code); code[0x0ffe] = 0x0f; /* rdtsc */ code[0x0fff] = 0x31; code[0x1000] = 0xcb; /* lret */ __asm__ __volatile("lcall $7,$0xffe" : "=A" (tsc)); printf("TSC is 0x%016llx\n", tsc); } Signed-off-by: Zachary Amsden <zach@vmware.com> Index: linux-2.6.13/arch/i386/kernel/ldt.c =================================================================== --- linux-2.6.13.orig/arch/i386/kerne...

...p;desc, sizeof(desc)) != 0) { perror("modify_ldt"); } printf("code base is 0x%08x\n", (unsigned)code); code[0x0ffe] = 0x0f; /* rdtsc */ code[0x0fff] = 0x31; code[0x1000] = 0xcb; /* lret */ __asm__ __volatile("lcall $7,$0xffe" : "=A" (tsc)); printf("TSC is 0x%016llx\n", tsc); } Signed-off-by: Zachary Amsden <zach@vmware.com> Index: linux-2.6.13/arch/i386/kernel/ldt.c =================================================================== --- linux-2.6.13.orig/arch/i386/kerne...

* Török Edwin <edwintorok at gmail.com> wrote: > On 2009-01-23 20:27, Török Edwin wrote: > >>> > >>> > >> i'd not mind it at all if the kernel could be built with other open-source > >> compilers too. > >> > >> Now in this case the patch you suggest might end up hurting the end result > >> so it's

...# Kill dangerous flag early + popfl + + # check magic number + movl wakesym(real_magic), %eax + cmpl $0x12345678, %eax + jne bogus_real_magic + + # for acpi_sleep=s3_bios + testl $1, wakesym(video_flags) + jz 1f + lcall $0xc000, $3 + movw %cs, %ax # In case messed by BIOS + movw %ax, %ds + movw %ax, %ss # Need this? How to ret if clobbered? + +1: + # for acpi_sleep=s3_mode + testl $2, wakesym(video_flags) + jz 1f + movl wakesym(vid...

On 2009-01-23 20:27, Török Edwin wrote: >>> >>> >> i'd not mind it at all if the kernel could be built with other open-source >> compilers too. >> >> Now in this case the patch you suggest might end up hurting the end result >> so it's not an unconditional 'yes'. But ... how much it actually matters >> depends on

Chris Wright wrote: >* Zachary Amsden (zach@vmware.com) wrote: > > >>Does Xen assume page aligned descriptor tables? I assume from this >> >> > >Yes. > > > >>patch and snippets I have gathered from others, that is a yes, and other >>things here imply that DT pages are not shadowed. If so, Xen itself >>must have live segments

Chris Wright wrote: >* Zachary Amsden (zach@vmware.com) wrote: > > >>Does Xen assume page aligned descriptor tables? I assume from this >> >> > >Yes. > > > >>patch and snippets I have gathered from others, that is a yes, and other >>things here imply that DT pages are not shadowed. If so, Xen itself >>must have live segments

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

...tries but the TSS. */ + if (lg->changed & CHANGED_GDT) + copy_gdt(lg, pages->state.guest_gdt); + + lg->changed = 0; +} + +static void run_guest_once(struct lguest *lg, struct lguest_pages *pages) +{ + unsigned int clobber; + + copy_in_guest_info(lg, pages); + + /* Put eflags on stack, lcall does rest: suitable for iret return. */ + asm volatile("pushf; lcall *lguest_entry" + : "=a"(clobber), "=b"(clobber) + : "0"(pages), "1"(__pa(lg->pgdirs[lg->pgdidx].pgdir)) + : "memory", "%edx", "%ecx...

...tries but the TSS. */ + if (lg->changed & CHANGED_GDT) + copy_gdt(lg, pages->state.guest_gdt); + + lg->changed = 0; +} + +static void run_guest_once(struct lguest *lg, struct lguest_pages *pages) +{ + unsigned int clobber; + + copy_in_guest_info(lg, pages); + + /* Put eflags on stack, lcall does rest: suitable for iret return. */ + asm volatile("pushf; lcall *lguest_entry" + : "=a"(clobber), "=b"(clobber) + : "0"(pages), "1"(__pa(lg->pgdirs[lg->pgdidx].pgdir)) + : "memory", "%edx", "%ecx...