similar to: RE: [PATCH] Re: SMP dom0 with 8 cpus of i386

Keir, Ian, With PCI mmconfig option on, and with the PCI express enabled BIOS, the dom0 kernel reads the PCI config from fix-mapped PCI mmconfig space. The PCI mmconfig space is of 256MB size, and it''s access is implemented differently on i386 & x86_64. On x86_64 the whole 256MB is mapped in the Kernel virtual address space. On i386 it will consume too much of the kernels

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

On Thu, Mar 1, 2018 at 5:13 PM, Bjorn Helgaas <helgaas at kernel.org> wrote: > On Thu, Mar 01, 2018 at 06:40:47AM +0100, Jan Kiszka wrote: >> From: Jan Kiszka <jan.kiszka at siemens.com> >> >> Since e279b6c1d329 ("x86: start unification of arch/x86/Kconfig.*"), we >> have two PCI_MMCONFIG entries, one from the original i386 and another >> from

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

From: Jan Kiszka <jan.kiszka at siemens.com> Since e279b6c1d329 ("x86: start unification of arch/x86/Kconfig.*"), we have two PCI_MMCONFIG entries, one from the original i386 and another from x86_64. This consolidates both entries into a single one. The logic for x86_32, where this option was not under user control, remains identical. On x86_64, PCI_MMCONFIG becomes additionally

From: Jan Kiszka <jan.kiszka at siemens.com> Jailhouse does not use ACPI, but it does support MMCONFIG. Make sure the latter can be built without having to enable ACPI as well. Primarily, we need to make the AMD mmconf-fam10h_64 depend upon MMCONFIG and ACPI, instead of just the former. Saves some bytes in the Jailhouse non-root kernel. Signed-off-by: Jan Kiszka <jan.kiszka at

From: Jan Kiszka <jan.kiszka at siemens.com> Jailhouse does not use ACPI, but it does support MMCONFIG. Make sure the latter can be built without having to enable ACPI as well. Primarily, we need to make the AMD mmconf-fam10h_64 depend upon MMCONFIG and ACPI, instead of just the former. Saves some bytes in the Jailhouse non-root kernel. Signed-off-by: Jan Kiszka <jan.kiszka at

From: Jan Kiszka <jan.kiszka at siemens.com> Jailhouse does not use ACPI, but it does support MMCONFIG. Make sure the latter can be built without having to enable ACPI as well. Primarily, we need to make the AMD mmconf-fam10h_64 depend upon MMCONFIG and ACPI, instead of just the former. Saves some bytes in the Jailhouse non-root kernel. Signed-off-by: Jan Kiszka <jan.kiszka at

From: Jan Kiszka <jan.kiszka at siemens.com> Jailhouse does not use ACPI, but it does support MMCONFIG. Make sure the latter can be built without having to enable ACPI as well. Primarily, we need to make the AMD mmconf-fam10h_64 depend upon MMCONFIG and ACPI, instead of just the former. Saves some bytes in the Jailhouse non-root kernel. Signed-off-by: Jan Kiszka <jan.kiszka at

From: Jan Kiszka <jan.kiszka at siemens.com> Jailhouse does not use ACPI, but it does support MMCONFIG. Make sure the latter can be built without having to enable ACPI as well. Primarily, we need to make the AMD mmconf-fam10h_64 depend upon MMCONFIG and ACPI, instead of just the former. Saves some bytes in the Jailhouse non-root kernel. Signed-off-by: Jan Kiszka <jan.kiszka at

From: Jan Kiszka <jan.kiszka at siemens.com> Since e279b6c1d329 ("x86: start unification of arch/x86/Kconfig.*"), we have two PCI_MMCONFIG entries, one from the original i386 and another from x86_64. This consolidates both entries into a single one. Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com> --- arch/x86/Kconfig | 11 ++++------- 1 file changed, 4 insertions(+),

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

Basic x86 support [1] for running Linux as secondary Jailhouse [2] guest is currently pending in the tip tree. This builds on top and enhances the PCI support for x86 and also ARM guests (ARM[64] does not require platform patches and works already). Key elements of this series are: - detection of Jailhouse via device tree hypervisor node - function-level PCI scan if Jailhouse is detected -

From: Jan Kiszka <jan.kiszka at siemens.com> Not sure if those two worked by design or just by chance so far. In any case, it's at least cleaner and clearer to express this in a single config statement. Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com> --- arch/x86/Kconfig | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/arch/x86/Kconfig

From: Jan Kiszka <jan.kiszka at siemens.com> Not sure if those two worked by design or just by chance so far. In any case, it's at least cleaner and clearer to express this in a single config statement. Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com> --- arch/x86/Kconfig | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/arch/x86/Kconfig

From: Jan Kiszka <jan.kiszka at siemens.com> Allow to enable PCI_MMCONFIG when only SFI is present and make this option default on. This will help consolidating both into one Kconfig statement. Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com> --- arch/x86/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index

From: Jan Kiszka <jan.kiszka at siemens.com> Allow to enable PCI_MMCONFIG when only SFI is present and make this option default on. This will help consolidating both into one Kconfig statement. Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com> --- arch/x86/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index