From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Aneesh Kumar K.V" Subject: Re: [RFC PATCH] KVM: PPC: BOOK3S: HV: THP support for guest Date: Tue, 06 May 2014 20:36:46 +0530 Message-ID: <87oazbq73t.fsf@linux.vnet.ibm.com> References: <1399224616-25142-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <5368A78D.4070509@suse.de> <1399368400.18906.9.camel@pasglop> <5368ADE3.1050503@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: linuxppc-dev@lists.ozlabs.org, paulus@samba.org, kvm@vger.kernel.org, kvm-ppc@vger.kernel.org To: Alexander Graf , Benjamin Herrenschmidt Return-path: In-Reply-To: <5368ADE3.1050503@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppd-linuxppc64-dev=m.gmane.org@lists.ozlabs.org Sender: "Linuxppc-dev" List-Id: kvm.vger.kernel.org QWxleGFuZGVyIEdyYWYgPGFncmFmQHN1c2UuZGU+IHdyaXRlczoKCj4gT24gMDUvMDYvMjAxNCAx MToyNiBBTSwgQmVuamFtaW4gSGVycmVuc2NobWlkdCB3cm90ZToKPj4gT24gVHVlLCAyMDE0LTA1 LTA2IGF0IDExOjEyICswMjAwLCBBbGV4YW5kZXIgR3JhZiB3cm90ZToKPj4KCi4uLi4uCgoKSSB1 cGRhdGVkIHRoZSBjb21taXQgbWVzc2FnZSBhcyBiZWxvdy4gTGV0IG1lIGtub3cgaWYgdGhpcyBp cyBvay4KCiAgICBLVk06IFBQQzogQk9PSzNTOiBIVjogVEhQIHN1cHBvcnQgZm9yIGd1ZXN0CiAg ICAKICAgIE9uIHJlY2VudCBJQk0gUG93ZXIgQ1BVcywgd2hpbGUgdGhlIGhhc2hlZCBwYWdlIHRh YmxlIGlzIGxvb2tlZCB1cCB1c2luZwogICAgdGhlIHBhZ2Ugc2l6ZSBmcm9tIHRoZSBzZWdtZW50 YXRpb24gaGFyZHdhcmUgKGkuZS4gdGhlIFNMQiksIGl0IGlzCiAgICBwb3NzaWJsZSB0byBoYXZl IHRoZSBIUFQgZW50cnkgaW5kaWNhdGUgYSBsYXJnZXIgcGFnZSBzaXplLiAgVGh1cyBmb3IKICAg IGV4YW1wbGUgaXQgaXMgcG9zc2libGUgdG8gcHV0IGEgMTZNQiBwYWdlIGluIGEgNjRrQiBzZWdt ZW50LCBidXQgc2luY2UKICAgIHRoZSBoYXNoIGxvb2t1cCBpcyBkb25lIHVzaW5nIGEgNjRrQiBw YWdlIHNpemUsIGl0IG1heSBiZSBuZWNlc3NhcnkgdG8KICAgIHB1dCBtdWx0aXBsZSBlbnRyaWVz IGluIHRoZSBIUFQgZm9yIGEgc2luZ2xlIDE2TUIgcGFnZS4gIFRoaXMKICAgIGNhcGFiaWxpdHkg aXMgY2FsbGVkIG1peGVkIHBhZ2Utc2l6ZSBzZWdtZW50IChNUFNTKS4gIFdpdGggTVBTUywKICAg IHRoZXJlIGFyZSB0d28gcmVsZXZhbnQgcGFnZSBzaXplczogdGhlIGJhc2UgcGFnZSBzaXplLCB3 aGljaCBpcyB0aGUKICAgIHNpemUgdXNlZCBpbiBzZWFyY2hpbmcgdGhlIEhQVCwgYW5kIHRoZSBh Y3R1YWwgcGFnZSBzaXplLCB3aGljaCBpcyB0aGUKICAgIHNpemUgaW5kaWNhdGVkIGluIHRoZSBI UFQgZW50cnkuIFsgTm90ZSB0aGF0IHRoZSBhY3R1YWwgcGFnZSBzaXplIGlzCiAgICBhbHdheXMg Pj0gYmFzZSBwYWdlIHNpemUgXS4KICAgIAogICAgV2UgYWR2ZXJ0aXNlIE1QU1MgZmVhdHVyZSB0 byBndWVzdCBvbmx5IGlmIHRoZSBob3N0IENQVSBzdXBwb3J0cyB0aGUKICAgIHNhbWUuIFdlIHVz ZSAiaWJtLHNlZ21lbnQtcGFnZS1zaXplcyIgZGV2aWNlIHRyZWUgbm9kZSB0byBhZHZlcnRpc2UK ICAgIHRoZSBNUFNTIHN1cHBvcnQuIFRoZSBwZW5jIGVuY29kaW5nIGluZGljYXRlIHdoZXRoZXIg d2Ugc3VwcG9ydAogICAgYSBzcGVjaWZpYyBjb21iaW5hdGlvbiBvZiBiYXNlIHBhZ2Ugc2l6ZSBh bmQgYWN0dWFsIHBhZ2Ugc2l6ZQogICAgaW4gdGhlIHNhbWUgc2VnbWVudC4gSXQgaXMgYWxzbyB0 aGUgdmFsdWUgdXNlZCBpbiB0aGUgTHxMUCBlbmNvZGluZwogICAgb2YgSFBURSBlbnRyeS4KICAg IAogICAgSW4tb3JkZXIgdG8gc3VwcG9ydCBNUFNTIGluIGd1ZXN0LCBLVk0gbmVlZCB0byBoYW5k bGUgdGhlIGJlbG93IGRldGFpbHMKICAgICogYWR2ZXJ0aXNlIE1QU1MgdmlhIGlibSxzZWdtZW50 LXBhZ2Utc2l6ZXMKICAgICogRGVjb2RlIHRoZSBiYXNlIGFuZCBhY3R1YWwgcGFnZSBzaXplIGNv cnJlY3RseSBmcm9tIHRoZSBIUFRFIGVudHJ5CiAgICAgIHNvIHRoYXQgd2Uga25vdyB3aGF0IHdl IGFyZSBkZWFsaW5nIHdpdGggaW4gSF9FTlRFUiBhbmQgYW5kIGNhbiBkbwogICAgICB0aGUgYXBw cm9wcmlhdGUgVExCIGludmFsaWRhdGlvbiBpbiBIX1JFTU9WRSBhbmQgZXZpY3Rpb25zLgogICAg CgoKPgo+IHllcy4gV2hlbiAvIGlmIHBlb3BsZSBjYW4gZWFzaWx5IGdldCB0aGVpciBoYW5kcyBv biBwNy9wOCBiYXJlIG1ldGFsIAo+IHN5c3RlbXMgSSdsbCBiZSBtb3JlIHRoYW4gaGFwcHkgdG8g cmVtb3ZlIDk3MCBzdXBwb3J0IGFzIHdlbGwsIGJ1dCBmb3IgCj4gbm93IGl0J3MgcHJvYmFibHkg Z29vZCB0byBrZWVwIGluLgo+CgpUaGlzIHNob3VsZCBoYW5kbGUgdGhhdC4KCisJLyoKKwkgKiBB ZGQgMTZNQiBNUFNTIHN1cHBvcnQgaWYgaG9zdCBzdXBwb3J0cyBpdAorCSAqLworCWlmIChsaW51 eF9wc2l6ZSAhPSBNTVVfUEFHRV8xNk0gJiYgZGVmLT5wZW5jW01NVV9QQUdFXzE2TV0gIT0gLTEp IHsKKwkJKCpzcHMpLT5lbmNbMV0ucGFnZV9zaGlmdCA9IDI0OworCQkoKnNwcyktPmVuY1sxXS5w dGVfZW5jID0gZGVmLT5wZW5jW01NVV9QQUdFXzE2TV07CisJfQogCSgqc3BzKSsrOwoKLWFuZWVz aAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXhw cGMtZGV2IG1haWxpbmcgbGlzdApMaW51eHBwYy1kZXZAbGlzdHMub3psYWJzLm9yZwpodHRwczov L2xpc3RzLm96bGFicy5vcmcvbGlzdGluZm8vbGludXhwcGMtZGV2