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Hi, attached patch fixes error path when VMRUN emulation fails. With this l1 guest keeps alive rather crashing the host. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85689 Dornach b. Muenchen Geschaeftsfuehrer: Alberto Bozzo, An...

Future AMD SVM supports a new feature called flush by ASID. The idea is to allow CPU to flush TLBs associated with the ASID assigned to guest VM. So hypervisor doesn''t have to reassign a new ASID in order to flush guest''s VCPU. Please review it. Thanks, Wei Signed-off-by: Wei Huang <wei.huang2@amd.com> Signed-off-by: Wei Wang <wei.wang2@amd.com> -- Advanced Micro

Attached patch for svm will enable a tlb flush for each vmrun. Applies cleanly to 8781:dcc2beb8a1d2 Signed-off-by: Tom Woller <thomas.woller@amd.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...hy? If SVM has the same behavior as VMX, the MONITOR will be disarmed on > > VM-Enter, i.e. the VMM can't do anything useful for MONITOR/MWAIT. I > > assume that's the case given that KVM emulates MONITOR/MWAIT as NOPs on > > SVM. > > Not sure if it is disarmed on VMRUN, but the MONITOR/MWAIT instructions > are part of the GHCB spec, so they are implemented here. Even if MONITOR/MWAIT somehow works across VMRUN I'm not sure it's something the guest should enable by default as it leaks GPAs to the untrusted host, with no benefit to the guest except in s...

...hy? If SVM has the same behavior as VMX, the MONITOR will be disarmed on > > VM-Enter, i.e. the VMM can't do anything useful for MONITOR/MWAIT. I > > assume that's the case given that KVM emulates MONITOR/MWAIT as NOPs on > > SVM. > > Not sure if it is disarmed on VMRUN, but the MONITOR/MWAIT instructions > are part of the GHCB spec, so they are implemented here. Even if MONITOR/MWAIT somehow works across VMRUN I'm not sure it's something the guest should enable by default as it leaks GPAs to the untrusted host, with no benefit to the guest except in s...

Hi all, Please can anybody explain how communication(direct or indirect) happens between xen and guest os(windows) in full virtualization mode. Both from VMM to guest and from guest to VMM. Thanks and regards, Aditya. __________________________________________________________ Yahoo! India Answers: Share what you know. Learn something new http://in.answers.yahoo.com/

Hi everyone, I searched previous postings and I couldn't find a definitive answer on this.. I run a small lab of RHEL/Centos Based servers on which there's VMWare Workstation running on a non-standard port but still manageable by tools like VMrun (and the Fusion of Workstation GUI, of course). I'm trying to use virsh with this setup and getting the following error from both RHEL6 and RHEL7: $ virsh -c esx://user1@server1:943/?no_verify=1 Enter user1's password for server1: error: internal error Expecting product 'gsx' or...

On Tue, Apr 28, 2020 at 05:17:09PM +0200, Joerg Roedel wrote: > From: Tom Lendacky <thomas.lendacky at amd.com> > > Implement a handler for #VC exceptions caused by MONITOR and MONITORX > instructions. > > Signed-off-by: Tom Lendacky <thomas.lendacky at amd.com> > [ jroedel at suse.de: Adapt to #VC handling infrastructure ] > Co-developed-by: Joerg Roedel

On Tue, Apr 28, 2020 at 05:17:09PM +0200, Joerg Roedel wrote: > From: Tom Lendacky <thomas.lendacky at amd.com> > > Implement a handler for #VC exceptions caused by MONITOR and MONITORX > instructions. > > Signed-off-by: Tom Lendacky <thomas.lendacky at amd.com> > [ jroedel at suse.de: Adapt to #VC handling infrastructure ] > Co-developed-by: Joerg Roedel

...the same behavior as VMX, the MONITOR will be disarmed on >>> VM-Enter, i.e. the VMM can't do anything useful for MONITOR/MWAIT. I >>> assume that's the case given that KVM emulates MONITOR/MWAIT as NOPs on >>> SVM. >> >> Not sure if it is disarmed on VMRUN, but the MONITOR/MWAIT instructions >> are part of the GHCB spec, so they are implemented here. > > Even if MONITOR/MWAIT somehow works across VMRUN I'm not sure it's something > the guest should enable by default as it leaks GPAs to the untrusted host, > with no benefit...

...>: > > Hi everyone, > > I searched previous postings and I couldn't find a definitive answer on > this.. > > I run a small lab of RHEL/Centos Based servers on which there's VMWare > Workstation running on a non-standard port but still manageable by tools > like VMrun (and the Fusion of Workstation GUI, of course). > > I'm trying to use virsh with this setup and getting the following error from > both RHEL6 and RHEL7: > > $ virsh -c esx://user1@server1:943/?no_verify=1 > Enter user1's password for server1: > error: internal error Exp...

Hi, I have started one node through libvirt API using its start method. I am trying to stop that node using the *destroy *method provided by the API but I am not able to do so. Instead, I am getting one message saying: *libvir: error: internal error Child process (vmrun -T player stop /root/test_folder/myImage.vmx soft) unexpected exit status 255* Can anybody tell me why I am not able to stop the node. Thanks in advance. :) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listman.redhat.com/archives/libvirt-users/attachm...

...indows 7 and various versions of Linux. The system is running the latest version of VMware Workstation. Until recently, I started VMs using the VMware Workstation GUI. The system has been very stable and seldom crashes. Recently, I set up an init script to start several VMs at boot time using the vmrun command. This appeared to work correctly, but the system has become unstable, freezing at various times. When the system freezes, there is no console response and it does not respond to a ping. There is nothing in syslog to indicate any error. The script started 8 VMs. I've cut back to now...

I would like to know approximately the overall execution flow when the guest O/S page fault - how is the page fault transfer to a page fault in the host O/S? Thanks. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

I'm new to NUT, but didn't find a clear answer to this either in the recent "ordered shutdown" thread or in Google: How to shut down VMWare guest virtual machines earlier than the host machine they run on? (For example, if everything normally shuts down at 5% UPS battery, then the VMs should shut down at 10%.) I also read upssched.txt but I can't tell from the early

...ITOR, 0, 0); > > Why? If SVM has the same behavior as VMX, the MONITOR will be disarmed on > VM-Enter, i.e. the VMM can't do anything useful for MONITOR/MWAIT. I > assume that's the case given that KVM emulates MONITOR/MWAIT as NOPs on > SVM. Not sure if it is disarmed on VMRUN, but the MONITOR/MWAIT instructions are part of the GHCB spec, so they are implemented here. Joerg

Patch 2/2 - Add flag to indicate that an exception event needs injecting, and to delay the ext interrupt injection. Remove unnecessary check of RFLAGS.IF for ExtInt injection. Applies cleanly to xen-unstable c/s 11831. Please apply to xen-unstable.hg. We would also want this patch to be in a 3.0.3-1 base whenever that is branched. Signed-off-by: Travis Betak <travis.betak@amd.com>

...t it is @@ -1109,15 +1122,15 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu, */ cr0 = kvm_read_cr0(vcpu); if (((cr0 & X86_CR0_CD) == 0) && (cr0 & X86_CR0_NW)) - return -EINVAL; + goto out_free; /* * Validate host state saved from before VMRUN (see * nested_svm_check_permissions). * TODO: validate reserved bits for all saved state. */ - if (!(save.cr0 & X86_CR0_PG)) - return -EINVAL; + if (!(save->cr0 & X86_CR0_PG)) + goto out_free; /* * All checks done, we can enter guest mode. L1 control fields @@ -1126,15...

Hi, Attached patch implements the VMCB cleanbits SVM feature. Upcoming AMD CPUs introduce them and they are basically hints for the CPU which vmcb values can be re-used from the previous VMRUN instruction. Each bit represents a certain set of fields in the VMCB. Setting a bit tells the cpu it can re-use the cached value from the previous VMRUN. Clearing a bit tells the cpu to reload the values from the given VMCB. Signed-off-by: Wei Huang <Wei.Huang2@amd.com> Signed-off-by: Chris...

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach b. Muenchen Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 _______________________________________________ Xen-devel mailing list