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...ace_close_common() which is called by many others functions. It means that they are also vulnerable. So fix above mentioned issue by adding NULL check in xc_interface_close_common(). This way we fix similar issue in other functions which calls xc_interface_close_common() too. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> --- tools/libxc/xc_private.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/libxc/xc_private.c b/tools/libxc/xc_private.c index 524862e..838fd21 100644 --- a/tools/libxc/xc_private.c +++ b/tools/libxc/xc_private.c @@ -198,6 +198,9 @@ static int xc_i...

...| 26 ++- include/xen/interface/xen.h | 33 ++ kernel/Makefile | 1 + kernel/kexec-firmware.c | 743 ++++++++++++++++++++++++++++++++++ kernel/kexec.c | 46 ++- 20 files changed, 2331 insertions(+), 18 deletions(-) Daniel Kiper (11): kexec: introduce kexec firmware support x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE xen: Introduce architecture independent data for kexec/kdump x86/xen: Introduce architecture dependent data for kexec/kdump x86/xen: Register reso...

...| 26 ++- include/xen/interface/xen.h | 33 ++ kernel/Makefile | 1 + kernel/kexec-firmware.c | 743 ++++++++++++++++++++++++++++++++++ kernel/kexec.c | 46 ++- 20 files changed, 2331 insertions(+), 18 deletions(-) Daniel Kiper (11): kexec: introduce kexec firmware support x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE xen: Introduce architecture independent data for kexec/kdump x86/xen: Introduce architecture dependent data for kexec/kdump x86/xen: Register reso...

...| 26 ++- include/xen/interface/xen.h | 33 ++ kernel/Makefile | 1 + kernel/kexec-firmware.c | 743 ++++++++++++++++++++++++++++++++++ kernel/kexec.c | 46 ++- 20 files changed, 2331 insertions(+), 18 deletions(-) Daniel Kiper (11): kexec: introduce kexec firmware support x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE xen: Introduce architecture independent data for kexec/kdump x86/xen: Introduce architecture dependent data for kexec/kdump x86/xen: Register reso...

Hey guys, Here are my thoughts about current Xen boot infrastructure and some changes proposal. It is linked with EFI development but not only. Since the beginning Xen image and other needed stuff could be loaded into memory according to multiboot protocol. (e.g. implemented by GRUB). It means that current implementation of Xen takes info about current system config from multiboot_info_t

On Wed, Dec 03, 2014 at 04:53:53PM +0100, Daniel Kiper wrote: > On Tue, Dec 02, 2014 at 01:36:20PM -0500, Konrad Rzeszutek Wilk wrote: > > On Tue, Dec 02, 2014 at 04:16:28PM +0100, Daniel Kiper wrote: > > > Signed-off-by: Daniel Kiper <daniel.kiper at oracle.com> > > > > This usage scenario which I can see this being...

Hi, Here are three small but important libxl/xl memory management patches: - libxl: xl mem-max et consortes must update static-max in xenstore too, - xl: Allow user to configure xl mem-set behavior, - xl: Improve xl documentation in regards to guest memory management. Daniel

vmcoreinfo file could exists under /sys/kernel (valid on baremetal only) and/or under /sys/hypervisor (valid when Xen dom0 is running). Read only one of them. It means that only one PT_NOTE will be always created. Remove extra code for second PT_NOTE creation. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> --- kexec/crashdump-elf.c | 33 +++++++-------------------------- 1 files changed, 7 insertions(+), 26 deletions(-) diff --git a/kexec/crashdump-elf.c b/kexec/crashdump-elf.c index 8d82db9..ec66548 100644 --- a/kexec/crashdump-elf.c +++ b/kexec/crashdump-elf.c @@...

Do not try to process Xen crash dump if dump level is invalid. Fail immediately and print relevant error message. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> --- makedumpfile.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/makedumpfile.c b/makedumpfile.c index b160cea..389efc5 100644 --- a/makedumpfile.c +++ b/makedumpfile.c @@ -64,6 +64,8 @@ do { \ static void check_cyclic_buf...

...++++++++++++++++++++++++++ drivers/xen/sys-hypervisor.c | 42 +++++- include/linux/kexec.h | 18 ++ include/xen/interface/xen.h | 33 ++++ kernel/kexec.c | 125 ++++++++++---- 16 files changed, 1636 insertions(+), 43 deletions(-) Daniel Kiper (11): kexec: introduce kexec_ops struct x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE xen: Introduce architecture independent data for kexec/kdump x86/xen: Introduce architecture dependent data for kexec/kdump x86/xen: Register resources...

...++++++++++++++++++++++++++ drivers/xen/sys-hypervisor.c | 42 +++++- include/linux/kexec.h | 18 ++ include/xen/interface/xen.h | 33 ++++ kernel/kexec.c | 125 ++++++++++---- 16 files changed, 1636 insertions(+), 43 deletions(-) Daniel Kiper (11): kexec: introduce kexec_ops struct x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE xen: Introduce architecture independent data for kexec/kdump x86/xen: Introduce architecture dependent data for kexec/kdump x86/xen: Register resources...

...++++++++++++++++++++++++++ drivers/xen/sys-hypervisor.c | 42 +++++- include/linux/kexec.h | 18 ++ include/xen/interface/xen.h | 33 ++++ kernel/kexec.c | 125 ++++++++++---- 16 files changed, 1636 insertions(+), 43 deletions(-) Daniel Kiper (11): kexec: introduce kexec_ops struct x86/kexec: Add extra pointers to transition page table PGD, PUD, PMD and PTE xen: Introduce architecture independent data for kexec/kdump x86/xen: Introduce architecture dependent data for kexec/kdump x86/xen: Register resources...

> Daniel Kiper <daniel.kiper at oracle.com> writes: > > > Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default > > Linux infrastructure and require some support from firmware and/or hypervisor. > > To cope with that problem kexec firmware infrastructure was introduced...

> Daniel Kiper <daniel.kiper at oracle.com> writes: > > > Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default > > Linux infrastructure and require some support from firmware and/or hypervisor. > > To cope with that problem kexec firmware infrastructure was introduced...

> On 12/26/2012 06:18 PM, Daniel Kiper wrote: > > Add i386 kexec/kdump implementation. > > > > v2 - suggestions/fixes: > > - allocate transition page table pages below 4 GiB > > (suggested by Jan Beulich). > > Why? Sadly all addresses are passed via unsigned long variable to kexec hypercall...

> On 12/26/2012 06:18 PM, Daniel Kiper wrote: > > Add i386 kexec/kdump implementation. > > > > v2 - suggestions/fixes: > > - allocate transition page table pages below 4 GiB > > (suggested by Jan Beulich). > > Why? Sadly all addresses are passed via unsigned long variable to kexec hypercall...

Hello All! How can I "post" some mails from Exim trnasport through Dovecot deliver to IMAP MailBox in specific folder (for example: "Junk")? -- With best regards, Alexander KIper!

per_cpu data is dynamically allocated since 21416 changeset (x86: Dynamically allocate percpu data area when a CPU comes online). Take into account that and read variables from correct address. Signed-off-by: Daniel Kiper <daniel.kiper-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> diff -Npru crash-6.0.8.orig/xen_hyper.c crash-6.0.8/xen_hyper.c --- crash-6.0.8.orig/xen_hyper.c 2012-07-05 15:47:09.000000000 +0200 +++ crash-6.0.8/xen_hyper.c 2012-07-05 15:50:19.000000000 +0200 @@ -64,7 +64,6 @@ xen_hyper_init(void)...

Newer Xen versions (at least 4.2) use per_cpu__init_tss instead of init_tss array. Take into account that. Signed-off-by: Daniel Kiper <daniel.kiper-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> diff -Npru crash-6.1.0.orig/x86.c crash-6.1.0/x86.c --- crash-6.1.0.orig/x86.c 2012-11-13 14:45:58.000000000 +0100 +++ crash-6.1.0/x86.c 2012-11-13 14:48:13.000000000 +0100 @@ -5471,9 +5471,16 @@ x86_get_stackbase_hyper(ulong task) if...

...y do not differentiate between normal and hotplugged memory. I thought about that ealier however stated that this soultion does not give us any real gain. That is why I decided to use standard name for hotplugged memory. If you have a questions please drop me a line. Daniel Signed-off-by: Daniel Kiper <dkiper@net-space.pl> --- arch/x86/Kconfig | 2 +- drivers/xen/balloon.c | 95 ++++++++------------------------------- include/linux/memory_hotplug.h | 3 +- mm/memory_hotplug.c | 55 ++++++++++++++++------- 4 files changed, 61 insertions(+), 94 de...