search for: tlfs

...om> > Co-Developed-by: Sunil Muthuswamy <sunilmut at microsoft.com> > Signed-off-by: Wei Liu <wei.liu at kernel.org> > --- > arch/x86/hyperv/hv_init.c | 26 ++++++++++++++++++++++++++ > arch/x86/include/asm/mshyperv.h | 2 ++ > include/asm-generic/hyperv-tlfs.h | 6 ++++++ > 3 files changed, 34 insertions(+) > > diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c > index ebba4be4185d..0eec1ed32023 100644 > --- a/arch/x86/hyperv/hv_init.c > +++ b/arch/x86/hyperv/hv_init.c > @@ -30,6 +30,9 @@ > bool hv_root_partiti...

...ose. > > They will be used in a later patch. > > Signed-off-by: Sunil Muthuswamy <sunilmut at microsoft.com> > Co-Developed-by: Sunil Muthuswamy <sunilmut at microsoft.com> > Signed-off-by: Wei Liu <wei.liu at kernel.org> > --- > include/asm-generic/hyperv-tlfs.h | 79 +++++++++++++++++++++++++++++++ > 1 file changed, 79 insertions(+) > > diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h > index 83945ada5a50..faf892ce152d 100644 > --- a/include/asm-generic/hyperv-tlfs.h > +++ b/include/asm-generic/hyperv-...

...artition, the hypervisor has already allocated the hypercall page. The root is required to query the page, map it in its address space and wrmsr to enable it. It cannot change the location of the page. For guest, it can allocate and assign the hypercall page. This is covered a bit in the hypervisor TLFS (section 3.13 in TLFS v6), for the guest side. The root side is not covered there, yet.

...snev at microsoft.com> > Signed-off-by: Wei Liu <wei.liu at kernel.org> > --- > arch/x86/hyperv/Makefile | 2 +- > arch/x86/hyperv/hv_proc.c | 209 ++++++++++++++++++++++++++++++ > arch/x86/include/asm/mshyperv.h | 4 + > include/asm-generic/hyperv-tlfs.h | 56 ++++++++ > 4 files changed, 270 insertions(+), 1 deletion(-) > create mode 100644 arch/x86/hyperv/hv_proc.c > > diff --git a/arch/x86/hyperv/Makefile b/arch/x86/hyperv/Makefile > index 89b1f74d3225..565358020921 100644 > --- a/arch/x86/hyperv/Makefile > +++ b/arch/x86...

...source and a data structure for > IO-APIC RTE. > > While at it, update pci-hyperv.c to use the enum. > > No functional change. > > Signed-off-by: Wei Liu <wei.liu at kernel.org> > --- > drivers/pci/controller/pci-hyperv.c | 2 +- > include/asm-generic/hyperv-tlfs.h | 36 +++++++++++++++++++++++++++-- > 2 files changed, 35 insertions(+), 3 deletions(-) > Acked-by: Rob Herring <robh at kernel.org>

...ernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -285,6 +286,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk such that zeroing the + * counter register during PIT shutdown restarts the PIT. So it + * contin...

...ernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -285,6 +286,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk such that zeroing the + * counter register during PIT shutdown restarts the PIT. So it + * contin...

...ernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -295,6 +296,16 @@ static void __init ms_hyperv_init_platform(void) if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk such that zeroing the + * counter register during PIT shutdown restarts the PIT. So it +...

...ernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -285,6 +286,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk such that zeroing the + * counter register during PIT shutdown restarts the PIT. So it + * contin...

...ernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -285,6 +286,16 @@ static void __init ms_hyperv_init_platfo if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk such that zeroing the + * counter register during PIT shutdown restarts the PIT. So it + * contin...