similar to: [PATCH] x86: fix -Wmissing-prototypes warning

* wang.yi59 at zte.com.cn <wang.yi59 at zte.com.cn> wrote: > Hi Ingo, > > > * Yi Wang <wang.yi59 at zte.com.cn> wrote: > > > > > We may get -Wmissing-prototypes warnings when building > > > kernel with W=1, it's better to fix them as global function > > > signature can be changed and caller who use the old unchanged > > >

From: Joerg Roedel <jroedel at suse.de> Load the IDT right after switching to virtual addresses in head_64.S so that the kernel can handle #VC exceptions. Signed-off-by: Joerg Roedel <jroedel at suse.de> Link: https://lore.kernel.org/r/20200724160336.5435-36-joro at 8bytes.org --- arch/x86/include/asm/setup.h | 3 +++ arch/x86/kernel/head64.c | 3 +++ arch/x86/kernel/head_64.S

From: Joerg Roedel <jroedel at suse.de> Setup an early handler for #VC exceptions. There is no GHCB mapped yet, so just re-use the vc_no_ghcb_handler. It can only handle CPUID exit-codes, but that should be enough to get the kernel through verify_cpu() and __startup_64() until it runs on virtual addresses. Signed-off-by: Joerg Roedel <jroedel at suse.de> ---

From: Joerg Roedel <jroedel at suse.de> Setup an early handler for #VC exceptions. There is no GHCB mapped yet, so just re-use the vc_no_ghcb_handler. It can only handle CPUID exit-codes, but that should be enough to get the kernel through verify_cpu() and __startup_64() until it runs on virtual addresses. Signed-off-by: Joerg Roedel <jroedel at suse.de> Link:

On Wed, 19 Jul 2017 16:48:23 +0800 (CST) <wang.yi59@zte.com.cn> wrote: > >* wang.yi59@zte.com.cn (wang.yi59@zte.com.cn) wrote: > > > >> Hi Eduardo, > > >> > > >> Thank you for your reply! > > >> > > >> >On Mon, Jul 17, 2017 at 09:49:37PM -0400, Yi Wang wrote: > > >> > >

From: Joerg Roedel <jroedel at suse.de> Move the assembly coded dispatch between page-faults and all other exceptions to C code to make it easier to maintain and extend. Signed-off-by: Joerg Roedel <jroedel at suse.de> --- arch/x86/kernel/head64.c | 20 ++++++++++++++++++++ arch/x86/kernel/head_64.S | 11 +---------- 2 files changed, 21 insertions(+), 10 deletions(-) diff --git

On Tue, Feb 11, 2020 at 5:53 AM Joerg Roedel <joro at 8bytes.org> wrote: > > From: Joerg Roedel <jroedel at suse.de> > > Move the assembly coded dispatch between page-faults and all other > exceptions to C code to make it easier to maintain and extend. > > Signed-off-by: Joerg Roedel <jroedel at suse.de> > --- > arch/x86/kernel/head64.c | 20

From: Joerg Roedel <jroedel at suse.de> When stack-protector is enabled a valid GS_BASE is needed before calling any C code function, because the stack canary is loaded from per-cpu data. Signed-off-by: Joerg Roedel <jroedel at suse.de> --- arch/x86/kernel/head64.c | 7 +++++++ arch/x86/kernel/head_64.S | 8 ++++++++ 2 files changed, 15 insertions(+) diff --git

From: Joerg Roedel <jroedel at suse.de> Also move it to a header file so that it can be used in the idt code to setup the early IDT. Signed-off-by: Joerg Roedel <jroedel at suse.de> --- arch/x86/include/asm/setup.h | 10 ++++++++++ arch/x86/kernel/head64.c | 5 ----- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/setup.h

From: Joerg Roedel <jroedel at suse.de> When stack-protector is enabled a valid GS_BASE is needed before calling any C code function, because the stack canary is loaded from per-cpu data. Signed-off-by: Joerg Roedel <jroedel at suse.de> Reviewed-by: Kees Cook <keescook at chromium.org> Link: https://lore.kernel.org/r/20200724160336.5435-31-joro at 8bytes.org ---

From: Joerg Roedel <jroedel at suse.de> The #VC exception will trigger very early in head_64.S, when the first CPUID instruction is executed. When secondary CPUs boot, they already load the real system IDT, which has the #VC handler configured to be using an IST stack. IST stacks require a TSS to be loaded, to set up the TSS early for bringing up the secondary CPUs. Use the RW version of

On Mon, May 18, 2020 at 10:23:13AM +0200, Borislav Petkov wrote: > On Tue, Apr 28, 2020 at 05:16:41PM +0200, Joerg Roedel wrote: > > @@ -480,6 +500,22 @@ SYM_DATA_LOCAL(early_gdt_descr_base, .quad INIT_PER_CPU_VAR(gdt_page)) > > SYM_DATA(phys_base, .quad 0x0) > > EXPORT_SYMBOL(phys_base) > > > > +/* Boot GDT used when kernel addresses are not mapped yet */ >

From: Liao Pingfang <liao.pingfang at zte.com.cn> Fix the comment of virtio_pci_find_capability() by adding missing comment for the last parameter: bars. Fixes: 59a5b0f7bf74 ("virtio-pci: alloc only resources actually used.") Signed-off-by: Liao Pingfang <liao.pingfang at zte.com.cn> Signed-off-by: Yi Wang <wang.yi59 at zte.com.cn> ---

From: Joerg Roedel <jroedel at suse.de> Set up the TSS for starting APs before they are kicked. This allows the APs to use IST in early exception handling. Also load the TSS early if the TSS entry in the GDT is present. This makes sure a TSS is only loaded when it has been set up. Signed-off-by: Joerg Roedel <jroedel at suse.de> Link:

The nature of a virtio-mmio node is discovered by the virtio driver at probe time. However the DMA relation between devices must be described statically. When a virtio-mmio node is a virtio-iommu device, it needs an "#iommu-cells" property as specified by bindings/iommu/iommu.txt. Otherwise, the virtio-mmio device may perform DMA through an IOMMU, which requires an "iommus"

Mostly due to x86 and acpi conversion, several documentation links are still pointing to the old file. Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung at kernel.org> Reviewed-by: Wolfram Sang <wsa at the-dreams.de> Reviewed-by: Sven Van Asbroeck <TheSven73 at gmail.com> Reviewed-by: Bhupesh Sharma <bhsharma at redhat.com> Acked-by: Mark Brown <broonie at

Mostly due to x86 and acpi conversion, several documentation links are still pointing to the old file. Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung at kernel.org> Reviewed-by: Wolfram Sang <wsa at the-dreams.de> Reviewed-by: Sven Van Asbroeck <TheSven73 at gmail.com> Reviewed-by: Bhupesh Sharma <bhsharma at redhat.com> Acked-by: Mark Brown <broonie at

From: Joerg Roedel <jroedel at suse.de> Add the infrastructure to handle #VC exceptions when the kernel runs on virtual addresses and has a GHCB mapped. This handler will be used until the runtime #VC handler takes over. Signed-off-by: Joerg Roedel <jroedel at suse.de> --- arch/x86/include/asm/segment.h | 2 +- arch/x86/include/asm/sev-es.h | 1 + arch/x86/kernel/head64.c

From: Mark Brown <broonie at linaro.org> According to the README at the existing URL the spec has moved to github so update the documentation to match. Signed-off-by: Mark Brown <broonie at linaro.org> --- Documentation/devicetree/bindings/virtio/mmio.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/virtio/mmio.txt

From: Mark Brown <broonie at linaro.org> According to the README at the existing URL the spec has moved to github so update the documentation to match. Signed-off-by: Mark Brown <broonie at linaro.org> --- Documentation/devicetree/bindings/virtio/mmio.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/virtio/mmio.txt