search for: page_tables

...ve undesirable results. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> --- arch/x86/include/asm/lguest_hcall.h | 1 + arch/x86/lguest/boot.c | 8 ++++++++ drivers/lguest/hypercalls.c | 3 +++ drivers/lguest/lg.h | 1 + drivers/lguest/page_tables.c | 16 ++++++++++++++++ 5 files changed, 29 insertions(+) diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index 54d66f0..a160894 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c @@ -92,6 +92,9 @@ static void do_hcall(struct lg_cpu *cpu, st...

...ve undesirable results. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> --- arch/x86/include/asm/lguest_hcall.h | 1 + arch/x86/lguest/boot.c | 8 ++++++++ drivers/lguest/hypercalls.c | 3 +++ drivers/lguest/lg.h | 1 + drivers/lguest/page_tables.c | 16 ++++++++++++++++ 5 files changed, 29 insertions(+) diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index 54d66f0..a160894 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c @@ -92,6 +92,9 @@ static void do_hcall(struct lg_cpu *cpu, st...

This series takes one more step towards cpu-ification of lguest. As for rusty's last suggestion, I get rid of the whole bunch of "struct lguest *lg = cpu->lg" statements around by using lg_cpu as our base structure wherever it matters. (this saves us 11 lines)

We still assume the Guest and Host have the same PAGE_OFFSET settings, but now we don't assume 0xC0000000. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> --- drivers/lguest/page_tables.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -996,11 +996,9 @@ static unsigned long setup_pagetables(st if (copy_to_user(&pgdi...

...ote: > > We still assume the Guest and Host have the same PAGE_OFFSET settings, > but now we don't assume 0xC0000000. > > Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> > Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> > --- > drivers/lguest/page_tables.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c > --- a/drivers/lguest/page_tables.c > +++ b/drivers/lguest/page_tables.c > @@ -996,11 +996,9 @@ static unsigned long setup_pagetables(s...

This series takes one more step towards cpu-ification of lguest. As for rusty's last suggestion, I get rid of the whole bunch of "struct lguest *lg = cpu->lg" statements around by using lg_cpu as our base structure wherever it matters. (this saves us 11 lines)

We still assume the Guest and Host have the same PAGE_OFFSET settings, but now we don't assume 0xC0000000. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> --- drivers/lguest/page_tables.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -996,11 +996,9 @@ static unsigned long setup_pagetables(st if (copy_to_user(&pgdi...

...ote: > > We still assume the Guest and Host have the same PAGE_OFFSET settings, > but now we don't assume 0xC0000000. > > Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> > Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> > --- > drivers/lguest/page_tables.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c > --- a/drivers/lguest/page_tables.c > +++ b/drivers/lguest/page_tables.c > @@ -996,11 +996,9 @@ static unsigned long setup_pagetables(s...

Hooks are provided for the mach-XXX subarchitecture at the time prior to a page being used as a page table at all levels, for PAE and non-PAE kernels. Note that in PAE mode, multiple PDP roots may exist on the same page with other data, so the root must be shadowed instead. This is not a performance issue, since PAE only uses 4 top level PDPEs. The hooks are: SetPagePTE(ppn) - indicates that a

Hooks are provided for the mach-XXX subarchitecture at the time prior to a page being used as a page table at all levels, for PAE and non-PAE kernels. Note that in PAE mode, multiple PDP roots may exist on the same page with other data, so the root must be shadowed instead. This is not a performance issue, since PAE only uses 4 top level PDPEs. The hooks are: SetPagePTE(ppn) - indicates that a

...r most people. (Includes compile fix by Kamalesh Babulal <kamalesh at linux.vnet.ibm.com>) Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> Cc: Kamalesh Babulal <kamalesh at linux.vnet.ibm.com> --- drivers/lguest/page_tables.c | 39 +++++++++++++++++---------------------- 1 file changed, 17 insertions(+), 22 deletions(-) diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -380,7 +380,7 @@ bool demand_page(struct lg_cpu *cpu...

...r most people. (Includes compile fix by Kamalesh Babulal <kamalesh at linux.vnet.ibm.com>) Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> Cc: Kamalesh Babulal <kamalesh at linux.vnet.ibm.com> --- drivers/lguest/page_tables.c | 39 +++++++++++++++++---------------------- 1 file changed, 17 insertions(+), 22 deletions(-) diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -380,7 +380,7 @@ bool demand_page(struct lg_cpu *cpu...

...st 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 "lguest_bus.h" for lguest_devices declaration. - page_tables.c unnecessary initialization - But the cost was high: lots of __force casts 8( 2) Jeff Garzik - Use netdev_priv instead of dev->priv. - Check for ioremap failure - iounmap on failure. - Wrap SEND_DMA and BIND_DMA calls - Don't set NETIF_F_SG unless we set NETIF_F_NO_C...

...st 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 "lguest_bus.h" for lguest_devices declaration. - page_tables.c unnecessary initialization - But the cost was high: lots of __force casts 8( 2) Jeff Garzik - Use netdev_priv instead of dev->priv. - Check for ioremap failure - iounmap on failure. - Wrap SEND_DMA and BIND_DMA calls - Don't set NETIF_F_SG unless we set NETIF_F_NO_C...

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 6/9] Guest page hinting: writable page table entries. The volatile state for page cache and swap cache pages requires that the host system needs to be able to determine if a volatile page is dirty before removing it. This excludes

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 6/9] Guest page hinting: writable page table entries. The volatile state for page cache and swap cache pages requires that the host system needs to be able to determine if a volatile page is dirty before removing it. This excludes

> >% gdiff ../kqemu-osol-1.3.0pre9/kqemu-solaris.c . > >54c54 > >< static uint_t kqemu_busy = 0; > >--- > > > > > >>static uint32_t kqemu_busy = 0; > >> > >> > >73c73 > >< static uint_t upages_locked = 0; > >--- > > > > > >>static uint32_t upages_locked = 0; > >> >

..., so we'd think we'd handled the fault and return to the guest, causing the guest userspace program to loop instead of segfaulting. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- drivers/lguest/core.c | 2 +- drivers/lguest/lg.h | 2 +- drivers/lguest/page_tables.c | 12 ++++++++---- 3 files changed, 10 insertions(+), 6 deletions(-) =================================================================== --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -346,7 +346,7 @@ int run_guest(struct lguest *lg, char *_ } break; case 14: /* We'v...

..., so we'd think we'd handled the fault and return to the guest, causing the guest userspace program to loop instead of segfaulting. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- drivers/lguest/core.c | 2 +- drivers/lguest/lg.h | 2 +- drivers/lguest/page_tables.c | 12 ++++++++---- 3 files changed, 10 insertions(+), 6 deletions(-) =================================================================== --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -346,7 +346,7 @@ int run_guest(struct lguest *lg, char *_ } break; case 14: /* We'v...

The VMI backend uses explicit page type notification to track shadow page tables. The allocation of page table roots is especially tricky. We want to clone the root for non-PAE mode while it is protected under the pgd lock. Signed-off-by: Zachary Amsden <zach@vmware.com> =================================================================== --- a/arch/i386/kernel/paravirt.c +++