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Anthony Liguori
b95fdc0e99
This is a set of patches dealing with kdump support for s390x/kvm. kdump on s390x uses subcode 1 of diagnose 0x308 to put the hardware in a defined state. This is different from a full reset, since it does not touch all CPU registers. These patches define the cpu resets, the subsystem reset a load function and also wires up the "nmi" command to issue a RESTART interrupt as defined in the z/Architecture principles of operation. This allows recent guest kernels with properly setup userspace to trigger kdump: - via guest crash - via nmi from the host # gpg: Signature made Fri 30 Aug 2013 07:19:18 AM CDT using RSA key ID B5A61C7C # gpg: Can't check signature: public key not found # By Christian Borntraeger (5) and Eugene (jno) Dvurechenski (2) # Via Christian Borntraeger * borntraeger/tags/kdump: s390: wire up nmi command to raise a RESTART interrupt on S390 s390: Implement load normal reset s390/cpu: split CPU reset into architectured functions s390: provide a cpu load normal function s390: provide I/O subsystem reset s390/kvm: basic implementation of diagnose 308 subcode 6 s390x/kvm: Fix switch/case indentation for handle_diag Message-id: 1377810649-47484-1-git-send-email-borntraeger@de.ibm.com
Read the documentation in qemu-doc.html or on http://wiki.qemu.org - QEMU team