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From: Anthony PERARD <anthony.perard@citrix.com> Remove the call to xenstore_record_dm_state from xen_main_loop_prepare that is HVM specific. Add a new vm_change_state_handler shared between xen_pv and xen_hvm machines to record the VM state to xenstore. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- xen-all.c | 25 ++++++++++++++++++------- 1 files changed, 18 insertions(+), 7 deletions(-) di...

A large amount of paravirt ops is used by Xen PV guests only. Add a new config option PARAVIRT_XXL which is selected by XEN_PV. Later we can put the Xen PV only paravirt ops under the PARACVIRT_XXL umbrella. Signed-off-by: Juergen Gross <jgross at suse.com> --- arch/x86/Kconfig | 3 +++ arch/x86/xen/Kconfig | 1 + 2 files changed, 4 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 887d3a7bb...

On 08/10/2018 07:52 AM, Juergen Gross wrote: > A large amount of paravirt ops is used by Xen PV guests only. Add a new > config option PARAVIRT_XXL which is selected by XEN_PV. Later we can > put the Xen PV only paravirt ops under the PARACVIRT_XXL umbrella. What does "XXL" stand for? My immediate thought was "extra extra large" but I suspect it's something else. -boris

...uests (Xen pv-guests > and lguest) only. > > Kernels not meant to support those guest types will be able to use many > operations without paravirt abstraction while still supporting all the > other paravirt features. > > For now just add the new Kconfig option and select it for XEN_PV and > LGUEST_GUEST. Add paravirt_full.c, paravirt_full.h and > paravirt_types_full.h which will contain the necessary implementation > parts of the pv guest specific paravirt functions. Is it not possible to just 'ifdef CONFIG_PARAVIT_FULL' the (ir)relevant parts of paravirt.[ch]...

...uests (Xen pv-guests > and lguest) only. > > Kernels not meant to support those guest types will be able to use many > operations without paravirt abstraction while still supporting all the > other paravirt features. > > For now just add the new Kconfig option and select it for XEN_PV and > LGUEST_GUEST. Add paravirt_full.c, paravirt_full.h and > paravirt_types_full.h which will contain the necessary implementation > parts of the pv guest specific paravirt functions. Is it not possible to just 'ifdef CONFIG_PARAVIT_FULL' the (ir)relevant parts of paravirt.[ch]...

...s used by fully paravirtualized guests (Xen pv-guests and lguest) only. Kernels not meant to support those guest types will be able to use many operations without paravirt abstraction while still supporting all the other paravirt features. For now just add the new Kconfig option and select it for XEN_PV and LGUEST_GUEST. Add paravirt_full.c, paravirt_full.h and paravirt_types_full.h which will contain the necessary implementation parts of the pv guest specific paravirt functions. Signed-off-by: Juergen Gross <jgross at suse.com> --- MAINTAINERS | 2 +- arch/...

This series removes some no longer needed stuff from paravirt infrastructure and puts large quantities of paravirt ops under a new config option PARAVIRT_XXL which is selected by XEN_PV only. A pvops kernel without XEN_PV being configured is about 2.5% smaller with this series applied. tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt: Fix spectre-v2 mitigations for paravirt guests") is a prerequisite for this series. The last 4 patches of this series...

...bit Xen PV guest support x86/xen: eliminate xen-asm_64.S x86/xen: drop tests for highmem in pv code x86/paravirt: remove 32-bit support from PARAVIRT_XXL x86/paravirt: cleanup paravirt macros x86/paravirt: use CONFIG_PARAVIRT_XXL instead of CONFIG_PARAVIRT x86/entry/32: revert "Fix XEN_PV build dependency" arch/x86/entry/entry_32.S | 109 +---- arch/x86/entry/entry_64.S | 4 +- arch/x86/entry/vdso/vdso32/note.S | 30 -- arch/x86/entry/vdso/vdso32/vclock_gettime.c | 1 + arch/x86/include/asm/fixmap.h | 2 +- ar...

This series removes some no longer needed stuff from paravirt infrastructure and puts large quantities of paravirt ops under a new config option PARAVIRT_XXL which is selected by XEN_PV only. A pvops kernel without XEN_PV being configured is about 2.5% smaller with this series applied. tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt: Fix spectre-v2 mitigations for paravirt guests") is a prerequisite for this series. The last 4 patches of this series...

...e entries, privileged instructions) it is desirable to enable those hooks only in cases where support of pv-guests is really desired. With splitting up of Xen guest support into pv-guest support and support for HVM-guests it is now possible to do the same for support of paravirtualization: only if XEN_PV or LGUEST_GUEST are configured full paravirtualization is required. This patch series carves out pv-guest support form PARAVIRT by introducing PARAVIRT_FULL config option selected by XEN_PV and LGUEST_GUEST config options. The series has been tested for 32 and 64 bit kernels without PARAVIRT, wit...

...e entries, privileged instructions) it is desirable to enable those hooks only in cases where support of pv-guests is really desired. With splitting up of Xen guest support into pv-guest support and support for HVM-guests it is now possible to do the same for support of paravirtualization: only if XEN_PV or LGUEST_GUEST are configured full paravirtualization is required. This patch series carves out pv-guest support form PARAVIRT by introducing PARAVIRT_FULL config option selected by XEN_PV and LGUEST_GUEST config options. The series has been tested for 32 and 64 bit kernels without PARAVIRT, wit...

...nges in V2: - rebase to 5.8 kernel - addressed comments to V1 - new patches 3 and 4 Juergen Gross (6): x86/paravirt: remove 32-bit support from PARAVIRT_XXL x86/paravirt: cleanup paravirt macros x86/paravirt: use CONFIG_PARAVIRT_XXL instead of CONFIG_PARAVIRT x86/entry/32: revert "Fix XEN_PV build dependency" x86/paravirt: remove set_pte_at pv-op x86/paravirt: avoid needless paravirt step clearing page table entries arch/x86/entry/entry_64.S | 4 +- arch/x86/entry/vdso/vdso32/vclock_gettime.c | 1 + arch/x86/include/asm/fixmap.h | 2 +-...