bwlp/qemu.git/accel/hvf, branch master

Fix 'writeable' typos

2022-06-08T18:38:47+00:00

We have about 30 instances of the typo/variant spelling 'writeable', and over 500 of the more common 'writable'. Standardize on the latter. Change produced with: sed -i -e 's/$[Ww][Rr][Ii][Tt]$[Ee]$[Aa][Bb][Ll][Ee]$/\1\2/g' $(git grep -il writeable) and then hand-undoing the instance in linux-headers/linux/kvm.h. Most of these changes are in comments or documentation; the exceptions are: * a local variable in accel/hvf/hvf-accel-ops.c * a local variable in accel/kvm/kvm-all.c * the PMCR_WRITABLE_MASK macro in target/arm/internals.h * the EPT_VIOLATION_GPA_WRITABLE macro in target/i386/hvf/vmcs.h (which is never used anywhere) * the AR_TYPE_WRITABLE_MASK macro in target/i386/hvf/vmx.h (which is never used anywhere) Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Stefan Weil Message-id: 20220505095015.2714666-1-peter.maydell@linaro.org

Remove qemu-common.h include from most units

2022-04-06T12:31:55+00:00

Signed-off-by: Marc-André Lureau Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini

Replace qemu_real_host_page variables with inlined functions

2022-04-06T08:50:38+00:00

Replace the global variables with inlined helper functions. getpagesize() is very likely annotated with a "const" function attribute (at least with glibc), and thus optimization should apply even better. This avoids the need for a constructor initialization too. Signed-off-by: Marc-André Lureau Message-Id: <20220323155743.1585078-12-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini

hvf: Avoid mapping regions < PAGE_SIZE as ram

2021-11-02T14:57:27+00:00

HVF has generic memory listener code that adds all RAM regions as HVF RAM regions. However, HVF can only handle page aligned, page granule regions. So let's ignore regions that are not page aligned and sized. They will be trapped as MMIO instead. Signed-off-by: Alexander Graf Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20211025132147.28308-1-agraf@csgraf.de> Signed-off-by: Paolo Bonzini

hvf: Determine slot count from struct layout

2021-10-13T08:47:49+00:00

We can handle up to a static amount of memory slots, capped by the size of an internal array. Let's make sure that array size is the only source of truth for the number of elements in that array. Signed-off-by: Alexander Graf Reviewed-by: Richard Henderson Message-Id: <20211008054616.43828-1-agraf@csgraf.de> Signed-off-by: Paolo Bonzini

memory: Name all the memory listeners

2021-09-30T13:30:24+00:00

Provide a name field for all the memory listeners. It can be used to identify which memory listener is which. Signed-off-by: Peter Xu Reviewed-by: David Hildenbrand Message-Id: <20210817013553.30584-2-peterx@redhat.com> Signed-off-by: Paolo Bonzini

arm/hvf: Add a WFI handler

2021-09-21T15:28:26+00:00

Sleep on WFI until the VTIMER is due but allow ourselves to be woken up on IPI. In this implementation IPI is blocked on the CPU thread at startup and pselect() is used to atomically unblock the signal and begin sleeping. The signal is sent unconditionally so there's no need to worry about races between actually sleeping and the "we think we're sleeping" state. It may lead to an extra wakeup but that's better than missing it entirely. Signed-off-by: Peter Collingbourne Signed-off-by: Alexander Graf Acked-by: Roman Bolshakov Reviewed-by: Sergio Lopez Message-id: 20210916155404.86958-6-agraf@csgraf.de [agraf: Remove unused 'set' variable, always advance PC on WFX trap, support vm stop / continue operations and cntv offsets] Signed-off-by: Alexander Graf Acked-by: Roman Bolshakov Reviewed-by: Sergio Lopez Signed-off-by: Peter Maydell

hvf: Add Apple Silicon support

2021-09-20T08:57:03+00:00

With Apple Silicon available to the masses, it's a good time to add support for driving its virtualization extensions from QEMU. This patch adds all necessary architecture specific code to get basic VMs working, including save/restore. Known limitations: - WFI handling is missing (follows in later patch) - No watchpoint/breakpoint support Signed-off-by: Alexander Graf Reviewed-by: Roman Bolshakov Reviewed-by: Sergio Lopez Reviewed-by: Peter Maydell Message-id: 20210916155404.86958-5-agraf@csgraf.de [PMM: added missing #include] Signed-off-by: Peter Maydell

hvf: Introduce hvf_arch_init() callback

2021-09-20T08:57:03+00:00

We will need to install a migration helper for the ARM hvf backend. Let's introduce an arch callback for the overall hvf init chain to do so. Signed-off-by: Alexander Graf Reviewed-by: Peter Maydell Message-id: 20210916155404.86958-4-agraf@csgraf.de Signed-off-by: Peter Maydell

hvf: Add execute to dirty log permission bitmap

2021-09-20T08:57:03+00:00

Hvf's permission bitmap during and after dirty logging does not include the HV_MEMORY_EXEC permission. At least on Apple Silicon, this leads to instruction faults once dirty logging was enabled. Add the bit to make it work properly. Signed-off-by: Alexander Graf Reviewed-by: Peter Maydell Message-id: 20210916155404.86958-3-agraf@csgraf.de Signed-off-by: Peter Maydell