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authorPeter Maydell <peter.maydell@linaro.org>2021-03-19 18:01:17 +0000
committerPeter Maydell <peter.maydell@linaro.org>2021-03-19 18:01:17 +0000
commitbdee969c0e65d4d509932b1d70e3a3b2ffbff6d5 (patch)
tree188cc6a895d8775cfc80467bce7590a9da408755 /docs
parent2e1293cbaac75e84f541f9acfa8e26749f4c3562 (diff)
parentaf05ffffd7fa28010d4df9f5744514b16e71055d (diff)
Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging
* fixes for i386 TCG paging * fixes for Hyper-V enlightenments * avoid uninitialized variable warning # gpg: Signature made Fri 19 Mar 2021 14:38:12 GMT # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini-gitlab/tags/for-upstream: tests/qtest: cleanup the testcase for bug 1878642 hw/intc/i8259: Refactor pic_read_irq() to avoid uninitialized variable i386: Make migration fail when Hyper-V reenlightenment was enabled but 'user_tsc_khz' is unset i386: Fix 'hypercall_hypercall' typo target/i386: svm: do not discard high 32 bits of EXITINFO1 target/i386: fail if toggling LA57 in 64-bit mode target/i386: allow modifying TCG phys-addr-bits qom: use qemu_printf to print help for user-creatable objects Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs')
-rw-r--r--docs/hyperv.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/hyperv.txt b/docs/hyperv.txt
index 5df00da54f..e53c581f45 100644
--- a/docs/hyperv.txt
+++ b/docs/hyperv.txt
@@ -160,6 +160,11 @@ the hypervisor) until it is ready to switch to the new one. This, in conjunction
with hv-frequencies, allows Hyper-V on KVM to pass stable clocksource (Reference
TSC page) to its own guests.
+Note, KVM doesn't fully support re-enlightenment notifications and doesn't
+emulate TSC accesses after migration so 'tsc-frequency=' CPU option also has to
+be specified to make migration succeed. The destination host has to either have
+the same TSC frequency or support TSC scaling CPU feature.
+
Recommended: hv-frequencies
3.16. hv-evmcs